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Mozilla released emergency security updates to address two Firefox zero-day vulnerabilities demonstrated in the recent Pwn2Own Berlin 2025 hacking competition. The fixes, which include the Firefox on Desktop and Android and two Extended Support Releases (ESR), came mere hours after the conclusion of Pwn2Own, on Saturday, where the second vulnerability was demonstrated. The first flaw, tracked under CVE-2025-4918, is an out-of-bounds read/write issue in the JavaScript engine when resolving Promise objects. The flaw was demonstrated during Day 2 of the competition by Palo Alto Networks security researchers Edouard Bochin and Tao Yan, who earned $50,000 for their discovery. The second flaw, CVE-2025-4919, allows attackers to perform out-of-bounds reads/writes on a JavaScript object by confusing array index sizes. It was discovered by security researcher Manfred Paul, who gained unauthorized access within the program's renderer, winning $50,000 in the process. Although the flaws constitute significant risks for Firefox, with Mozilla rating them "critical" in its bulletins, the software vendor underlined that neither researchers could perform a sandbox escape, citing targeted strengthening on that front. "Unlike prior years, neither participating group was able to escape our sandbox this year," explained Firefox in the announcement. "We have verbal confirmation that this is attributed to the recent architectural improvements to our Firefox sandbox which have neutered a wide range of such attacks." Although there are no indications that the two flaws have been exploited outside of Pwn2Own, their public demonstration could fuel real attacks soon. To mitigate this risk, Mozilla engaged a diverse "task force" from across the globe that worked feverishly to develop fixes for the demonstrated exploits, test them, and push out security updates as soon as possible. Firefox users are recommended to upgrade to version 138.0.4, ESR 128.10.1, or ESR 115.23.1. Pwn2Own Berlin 2025 concluded on Saturday with over a million USD in payouts and the STAR Labs SG team winning the 'Master or Pwn' title. Two Firefox zero-days were also demonstrated last year at Pwn2Own Vancouver 2024, with Mozilla fixing them the next day. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of April): 1,811 RIP Matrix | Farewell my friend

Mozilla released a small bug-fixing update for Firefox 138. Version 138.0.3 follows the release of Firefox 138.0.1 two weeks ago, and it addresses four issues across platforms. Mozilla resolved crashes when viewing websites using WebGL, HDR issues on Linux, problems with certain shortcuts, and repeated crashes caused by SVG effects. Here is the changelog: Firefox 138 arrived earlier in late April with some interesting changes. The browser received a profile manager so that you can keep your personal, work, or studying stuff separate from each other, some user interface improvements for those on Windows 11, more address bar improvements, tab groups for all users worldwide, and more. You can find the complete changelog here. You can download Firefox 138.0.3 from the official website, the Microsoft Store (if you are on Windows 10 and 11), or Neowin's software page. Existing installations will get to the latest version automatically, but you can speed things up by heading to Menu > Help > About Firefox. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of April): 1,811 RIP Matrix | Farewell my friend

If you have been reading Neowin or some other tech blog fairly regularly, you must be aware of the current Google vs DOJ situation. As a refresher, the DOJ has been pushing Google to sell off Chrome and open its search index to competitors. Google has been paying the likes of Mozilla and Apple billions to maintain Google Search as the default search engine, and the DOJ has flagged this practice as anti-competitive. While it sounds like a win for Google's rival, in the case of Mozilla, things are not looking too bright, at all. That is because an enormous portion of the funding that Mozilla is able to get comes from Google. Some say it is close to 80%, although Mozilla itself stated back in 2011 that the "specific terms of this commercial agreement are subject to traditional confidentiality requirements" and that it is "not at liberty to disclose them" with reports suggesting it was around $300 million. If true, it must be a big chunk of change in 2025 as the firm is clearly very worried. Following the recent testimonial by Mozilla's Chief Financial Officer, Eric Muhlheim, the firm published a blog post explaining how Google's funding, or the lack thereof, could make or break Firefox as well as its in-house engine. It says: Google itself had put forth the same argument previously. However, it is not just the funding itself that will hurt Mozilla and its ability to develop the browser; the default search engine itself can play a big role, too. The firm says that Google Search has already proved itself to be the better alternative as Yahoo had previously failed to satisfy the search needs for most of its users, but to the dismay of Mozilla, many of those dissatisfied users moved over to other browsers. It writes: Thus, the damage Firefox could take can be twofold: first, from the lack of funding itself and second, from unhappy users who ditch Firefox due to a dissatisfactory browsing experience. Mark Surman, President of Mozilla, also argued previously that this does not actually help promote healthier competition: It will be interesting to see how things pan out and whether Mozilla can survive, let alone thrive, if Google is forced to cut ties from the search engine agreement. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of April): 1,811 RIP Matrix | Farewell my friend

Mozilla has released a small bug-fixing update for the recently launched Firefox 138. Version 138.0.1 is now available for download from the official website or within the browser, and it brings two fixes. One addresses a bug causing a blank page to appear instead of Home and New Tab pages, and another patches bugs with Outlook for the web adding UTF-8 to the beginning of attachment file names upon saving. Here is the changelog and links to the fixed bugs: As a reminder, Firefox 138 arrived earlier this week with some interesting changes. The browser received a profile manager to help you keep browsing well-organized, some design improvements for Windows 11 users, more address bar improvements, tab groups for all users worldwide, and more. You can find the complete changelog here. You can download Firefox 138.0.1 from the official website, the Microsoft Store (if you are on Windows 10 and 11), or Neown's software page. Existing installations will get to the latest version automatically, but you can speed things up by heading to Menu > Help > About Firefox. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

Mozilla released Firefox 138 to the stable channel yesterday with several improvements that you can read about on Neowin. Alongside that launch, the company also released the first Firefox 139 update to the beta channel and it brings improved upload performance on HTTP/3 connections. To be clear, the beta channel gets updates three times per week so other features may get added before it’s released in several weeks. Most users do not need to worry themselves about what HTTP/3 is, as it’s something the browser deals with behind the scenes. For users, it delivers faster page load times, improved performance on mobile networks, and enhanced security. Now, Firefox also uploads data over this protocol faster in this latest update. The release notes state that upload performance on HTTP/3 has been significantly improved, particularly on resumed connections that use QUIC 0-RTT, as well as high bandwidth and high delay connections. In addition to this, the release notes also state that full-page translations are now available in the Firefox extensions page and PNG images with transparency will keep their transparency when pasted into Firefox. While these are certainly nice changes, Mozilla says on its release notes page that the features may or may not make it into the final release. While delays are certainly possible, Mozilla is planning to release Firefox 139 on May 27, 2025 - less than a month from now. Alongside the stable release of Firefox 139, Mozilla will release Firefox 115.24 and Firefox 128.11 extended support releases. These two versions likely won’t see the HTTP/3 improvements and will instead just get security patches to keep users safe. To stay abreast of future updates to the beta channel, you can bookmark the Firefox 139 beta release notes page. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

It is update time for those browsing the internet with Firefox. Mozilla released version 138.0 with some interesting changes, such as a profile manager, more Windows 11 design bits, address bar improvements, and more. The biggest change in Firefox 138 is a profile manager and the ability to organize your browsing into separate spaces. For example, you can have one profile for work, one for study, and one for personal stuff. Each profile has its own bookmarks, passwords, browsing history, and more. For Windows 11 users, Mozilla added acrylic material for pop-up windows to better match the UI of the system. Here is the rest of the changelog: Mozilla notes that there is currently a problem with importing passwords from Chrome. As a workaround, developers suggest exporting passwords in CSV and then importing the file into Firefox. You can update Firefox by heading to Menu > Help > About Firefox, or by downloading it from Neowin software stories page or from the official website or the Microsoft Store. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

Mozilla plans to release the second point update for Firefox 137 in the next hours. The new update fixes security issues in Firefox and includes a good number of bug fixes next to that. As always, our preview of the update is based on preliminary information about it. There is always the chance that some changes are pulled or new ones added before the update is released. Generally speaking, it is usually very accurate. Firefox 137.0.2 The new Firefox 137.0.2 update includes a security fix. Additional information is not provided until after the official release. We will update the article then to add the information. Regarding non-security fixes in Firefox 137.0.2, there are several noteworthy ones. DRM Playback and video woes One of the main changes reverts support for Microsoft PlayReady hardware decryption DRM support in Firefox 137 to a specific list of supported sites. Mozilla started to roll out full support, but this caused video playback issues on some sites or crashes. Integrated support improves compatibility with certain DRM-features that streaming sites use. Mozilla fixed a second video related issue in the release. Firefox would not respond to clicks in some HTML5 video players. Update restart issue Some Firefox users reported a restart issue to Mozilla recently. Firefox would prompt them for several restarts of the browser after the installation of a single update. The normal behavior is a single restart to finalize installation of the update. Some users noticed that Firefox would only install the update if the browser was closed and then restarted. Mozilla corrects the issue in the release, but is still working on fixing the underlying change that caused it. And the rest of the fixes Here is the list of remaining fixes in the Firefox release: Firefox would not display the file picker on macOS in about:logins when users started to export passwords. Fixed several accessibility issues with the new PDF signature feature. Fixed an issue in the Style Editor that caused code to be added twice. Fixed a functional regression in XSLT supported introduced in Firefox 137. Fixed a tooltip flickering display issue on Windows when hovering. Fixed an issue with radio inputs. Closing Words Mozilla plans to release Firefox 137.0.2 today. Since it is a security update, it will be installed on most non-managed Firefox installations automatically. You can check for the update by selecting Firefox Menu > Help > About Firefox. This should download and install the update after it has been released by Mozilla. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

Mozilla is rolling out a small patch for the recently released Firefox 137. Version 137.0.1 is now available for download, and it fixes three important bugs. Two of them cause the browser to crash on Windows, while the third messes with the way Firefox treats folder shortcuts. Mozilla says the update should address crashes on Windows systems with Qihoo 360 antivirus software and "occasional crashes" on startup. The bug with folder shortcuts prevents files from being selected within the target folders. It was also fixed in version 137.0.1. Here is the official changelog: In case you missed it, Mozilla released Firefox 137 on April 1. The update was quite a big one, and it introduced some much-requested changes, such as tab groups, a refreshed address bar (it can now work as a calculator), HEVC playback on Linux, PDF signing, and more. Full release notes for version 137 are available here. You can update Firefox by heading to Menu > Help > About Firefox. Alternatively, get the browser from the official website or the Microsoft Store (if you are on Windows 10 and 11). Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

Earlier today, Microsoft announced that it is deprecating a mechanism in Edge in order to improve user data privacy. The company has also published a timeline for the phase out. You can find the details in this dedicated piece. Meanwhile, Mozilla also announced something similar yesterday about user data collection. The company is trying to simplify the way its add-ons and extensions ask for consent for data "collection and transmission" when you install them on your browser. This news is interesting considering the recent backlash the company received regarding user data protection. Mozilla feels this update will simplify things from both the perspectives of the developer of an add-on as well as the user who installs it. The firm explains the development side benefits first: And following that, Mozilla has explained how the new updated consent type will help users: If you are wondering, AMO here refers to the addons.mozilla.org website where all the Firefox add-ons and extensions are available. You can find the blog post here on Mozilla's website. The firm adds that more technical details will be published later on the same page. Currently it is still gathering feedback. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

April 1st brings good news for Firefox users: version 137.0 is here with a pretty hefty changelog. You can now download the latest update and enjoy some new features like tab groups (another long-anticipated feature after vertical tabs from Firefox 136), HEVC playback on Linux, PDF signing, and a big refresh for the address bar with contextual search, a unified search button, and more. And hey, you can now use the address bar as a calculator—just type your expression, and Mozilla will do the job for you. Nice. Here is the changelog: Security fixes in Firefox 137.0 are available here, and Enterprise Release notes are available here. You can update Firefox by heading to Menu > Help > About Firefox. Alternatively, get the browser from the official website or the Microsoft Store (if you are on Windows 10 and 11). Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of March): 1,357 RIP Matrix | Farewell my friend

Mozilla has released Firefox 136.0.4 to patch a critical security vulnerability that can let attackers escape the web browser's sandbox on Windows systems. Tracked as CVE-2025-2857, this flaw is described as an "incorrect handle could lead to sandbox escapes" and was reported by Mozilla developer Andrew McCreight. The vulnerability impacts the latest Firefox standard and extended support releases (ESR) designed for organizations that require extended support for mass deployments. Mozilla fixed the security flaw in Firefox 136.0.4 and Firefox ESR versions 115.21.1 and 128.8.1. While Mozilla didn't share technical details regarding CVE-2025-2857, it said the vulnerability is similar to a Chrome zero-day exploited in attacks and patched by Google earlier this week. "Following the sanbdox escape in CVE-2025-2783, various Firefox developers identified a similar pattern in our IPC code. Attackers were able to confuse the parent process into leaking handles into unpriviled [sic] child processes leading to a sandbox escape," Mozilla said in a Thursday advisory. "The original vulnerability was being exploited in the wild. This only affects Firefox on Windows. Other operating systems are unaffected." Chrome zero-day exploited to target Russia Kaspersky's Boris Larin and Igor Kuznetsov, who discovered and reported CVE-2025-2783 to Google, said on Tuesday that the zero-day was exploited in the wild to bypass Chrome sandbox protections and infect targets with sophisticated malware. They spotted CVE-2025-2783 exploits deployed in a cyber-espionage campaign dubbed Operation ForumTroll, targeting Russian government organizations and journalists at unnamed Russian media outlets. "The vulnerability CVE-2025-2783 really left us scratching our heads, as, without doing anything obviously malicious or forbidden, it allowed the attackers to bypass Google Chrome’s sandbox protection as if it didn’t even exist," they said. "The malicious emails contained invitations supposedly from the organizers of a scientific and expert forum, 'Primakov Readings,' targeting media outlets, educational institutions and government organizations in Russia." In October, Mozilla also patched a zero-day vulnerability (CVE-2024-9680) in Firefox's animation timeline feature exploited by the Russian-based RomCom cybercrime group that let the attackers gain code execution in the web browser's sandbox. The flaw was chained with a Windows privilege escalation zero-day (CVE-2024-49039) that allowed the Russian hackers to execute code outside the Firefox sandbox. Their victims were tricked into visiting an attacker-controlled website that downloaded and executed the RomCom backdoor on their systems. Months earlier, it fixed two Firefox zero-day vulnerabilities one day after they were exploited at the Pwn2Own Vancouver 2024 hacking competition. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla has a fresh browser update for those who use TikTok in Firefox. Version 163.0.3 is now available with a single fix for performance issues on the video platform. The changelog for version 163.0.3 is a rather slim one: According to users who reported the problem, pre-Firefox 163.0.3 versions of the browser experience "extreme slowdowns," user interface lags, and video stuttering after scrolling a bunch of videos and attempting to open a profile page, resulting in the browser feeling "completely overwhelmed by TikTok's website." Chromium-based browsers, though, do not experience those symptoms. In addition to reports on Bugzilla, there are plenty of complaints on Reddit. Firefox 163.0.3 follows the two previously released Firefox updates for version 163.0. Firefox 163.0.1 fixed problems with cookie size limits, which was causing issues with login retention and other state-related bugs. It also fixed the non-working Ctrl / Cmd + L shortcut. As for Firefox 163.0.2, it delivered more patches for cookies, fixes for user interface glitches, high CPU usage on Windows (when locked or with the laptop lid closed), and more. You can find release notes for the latest Firefox update in the official documentation. The browser is available from the official website and the Microsoft Store (for Windows 10 and 11 users). Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Firefox 136 has received another bug-fixing update. Version 136.0.2 is now available for download with patches for a few important issues affecting users' browsing experience. Mozilla resolved problems with the browser auto-cleaning cookies and site data, high CPU usage on Windows PCs in certain scenarios, a few UI issues here and there, and more. Here is the changelog: Firefox 136.0.2 follows version 136.0.1, which was released last week to address other cookie-related issues and bugs with certain keyboard shortcuts. As for version 136.0, it arrived on March 4 with an updated sidebar, vertical tabs, hardware-accelerated HEVC playback on macOS, hardware video decoding on Linux systems with AMD GPUs, and more. Firefox is available on Windows, macOS, Linux, Android, and iOS. You can download it from the official website or the Microsoft Store if you use Windows 10 or Windows 11. If, for some reason, you are still on Windows 7, you can still use Firefox 115 ESR, which will remain supported for a few more months. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla has been diligently at work recently to introduce highly requested features to its Firefox web browser. It launched one of these features, vertical tabs, in Firefox 136 already. Other features, including tab groups, are also on a good way and will be released in a future update. Firefox already has an advantage in some areas feature-wise. The mobile version of Firefox, for example, supports browser extensions. Microsoft just recently introduced extensions for Edge on Android, but the feature is in beta and very limited. Google has never enabled extensions in the mobile version of Chrome. Progressive Web Apps (PWA) While Firefox has reached feature parity already in some regards or is beating its main competitors in other areas, it is still lagging behind in some areas. One of these is support for PWA. Chromium-based browsers have supported Progressive Web Apps for a long time. What are Progressive Web Apps (PWA)? Simply put, they move websites or services a bit out of the browser so that they work more like native applications. Means, you get window controls and functions, including the ability to pin PWAs to the taskbar or Start menu, responsiveness, offline support, and more. Not every Internet user needs access to PWAs, but those who do or want that access, have a hard time using Firefox. While there is an extension for Firefox, called Progressive Web Apps for Firefox, that brings support, it is far from ideal. Good news is that Mozilla is working in bringing native PWA support to Firefox. Mozilla calls these Taskbar Tabs and the feature is in active development. While that is the case, no version of Firefox exists right now that supports this in a functional way. While you can enable the preference browser.taskbarTabs.enabled in Firefox Nightly, even there you will notice that the feature does not work right now. Mozilla employee David Rubino shared Mozilla's vision regarding web apps just recently on the Mozilla Connect website. According to his post, Mozilla's main focus is on bringing some of the app-like features to web apps. These include the ability to add icons of web apps to the taskbar of the operating system and to have them open links that they support. Other features, Rubino mentions the option to uninstall PWAs from the operating system's preference, may not be introduced, however. Closing Words It looks as if future versions of Firefox will support a base set of PWA features. While the initial implementation may not be as complete as that of Chromium-based browsers, it at the very least adds basic support for web apps in Firefox. With that said, it is unclear at this point when the feature is going to see the light of day. Now You: what is your take on Progressive Web Apps? Is that a feature that you use already, or something that you do not really need? Feel free to leave a comment down below. (via Windows Report) Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Here is a reminder for Firefox users sticking to some old versions: on March 14, 2025, outdated Firefox releases will lose some of their functionality due to the root certificate expiration (a trusted authority that verifies the authenticity of websites, add-ons and software updates). Affected features include add-ons or extensions, DRM content playback, and more. This situation affects customers with Firefox versions earlier than 128 and ESR 115.13 on Windows, macOS, Linux, and Android (iOS is not affected). It also applies to unsupported operating systems with ESR releases, namely Windows 7, 8, and 8.1 and macOS 10.12, 10.13, and 10.14. Newer Firefox releases have a newer root certificate, hence Mozilla's call to update to Firefox 128/ESR 115.13 or newer. In a support document published in late 2024, Mozilla says the following: Although you can continue using Firefox with an expired root certificate, Mozilla recommends not doing so, as you will lose access to important systems and remain vulnerable to unpatched security issues. Note that operating systems that no longer support the primary release channel can still update to a newer ESR release with a valid root certificate. By the way, Mozilla still supports Firefox ESR 115 on unsupported Windows and macOS versions. It even recently expanded support by another six months. If you want to read more about the expiration of the root certificate in older Firefox releases, see Mozilla's official support document here. You can also check your Firefox version by heading to Menu > Help > About Firefox. By the way, today, Mozilla released a new update for its browser, and you can check out all the details here. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla is rolling out a small update for the recently released Firefox 136. As usual, a bunch of small bug-fixing updates follow the recent major release, and version 136 is no exception. This time, version 136.0.1 arrived with two fixes. The first bug addresses a problem with a cookie size limit, which could cause all sorts of issues with keeping you logged in on websites or other page state-related problems. The second bugfix will please keyboard shortcut lovers: Version 136 apparently broke the Ctrl + L / Cmd + L shortcut (set focus to the address bar) on new browser windows. Firefox 136.0.1 fixes that. Here is the official changelog: You can download Firefox 136.0.1 by heading to Menu > Help > About Firefox. Alternatively, get the browser from the official website or the Microsoft Store if you use Windows 10 or Windows 11. In case you missed it, the recently released Firefox 136 introduced quite a lot of new stuff. The browser received an updated sidebar, the long-expected vertical tabs, an improved "Clear browsing data" menu, hardware-accelerated playback of HEVC video on macOS, hardware video decoding on Linux systems with AMD graphics cards, and more. Firefox also reminded users that it does not plan to ditch Manifest V2 extensions in light of Chrome carpet-bombing all MV2 extensions in its store. The latter can be quite easily bypassed, though. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla recently updated Firefox's Terms of Use, brewing controversy and concern among users about its stance on data privacy and sharing with third-party vendors. Last week, Mozilla was trapped between a rock and a hard place after making a controversial update to its developer's Terms of Use (via PCGamer). The update received backlash from Firefox users, especially because of a section indicating that Mozilla had the right to leverage user data, including "a nonexclusive, royalty-free, worldwide license for the purpose of doing as you request with the content you input in Firefox." Perhaps more concerning, the company scrapped a section of its Frequently Asked Questions (FAQs) that highlighted its promise to keep user data safe and private, away from third-party vendors. The highlighted changes enraged users, prompting the company to update its documentation once again as an attempt to mitigate the arising issues and concerns about its dramatic data privacy shift. Consequently, Mozilla issued an update addressing the issue. The company seemingly shifted blamed to a "confusion about the language regarding licenses." Ajit Varma, VP of Firefox Product, indicated that the update was designed to introduce a new Terms of Use (TOU) and Privacy Notice for Firefox. However, the update seemingly brewed confusion among users about the company's Terms of Use, specifically on licensing. According to Varma: "Our intent was just to be as clear as possible about how we make Firefox work, but in doing so we also created some confusion and concern.” The new update to Mozilla's documentation seemingly addressed the privacy concerns raised by users, but it might be a little for the company to salvage the situation. While the controversial changes to Mozilla's documentation can be attributed to miscommunication on the company's part and misunderstanding on the user's end, the wording on some of the changes made was highly alarming. For instance, the answer to "What is Firefox?" in Mozilla's FAQ section previously indicated: "The Firefox Browser is the only major browser backed by a not-for-profit that doesn’t sell your personal data to advertisers while helping you protect your personal information." But the section has since been updated and now reads: "The Firefox Browser, the only major browser backed by a not-for-profit, helps you protect your personal information." While it might be an assumption and misinterpretation of the updated terms, it seems Mozilla is no longer committed to not sell personal user data to third-party advertisers. A thorough look and analysis of Mozilla's updated documentation, reveals that the company is seemingly shying away from affirming its stance on data privacy. However, Firefox's VP claims the omission of "sell" is a result of the fluid definition of the term when it comes to data sharing and privacy. According to the VP: “Mozilla doesn’t sell data about you (in the way that most people think about ‘selling data’), and we don’t buy data about you. We changed our language because some jurisdictions define ‘sell’ more broadly than most people would usually understand that word.” Users are less-than-pleased with Firefox Much of the blowback also points fingers at folks using Firefox on Windows in regards to data collection. (Image credit: Future) While Firefox has seemingly attempted to address the recent changes made to its documentation and affirm its data privacy and sharing stances, users are throwing a deaf year to its plea. "People aren't upset about how transparent they're being, they just want to use a browser that doesn't collect and distribute their data," an enraged Reddit user indicated. "I'm no lawyer, but for example, it sounds like they have license to distribute the data below without contest." Some used the opportunity to throw jabs at Microsoft, branding Windows as "the biggest data-mining operating system." On the other hand, some users speculate that the controversial changes might be an attempt to bolster Mozilla's, and by extension, Firefox's AI efforts. According to another Reddit user: "Yes. Crazy stuff. I read recently that the new CEO wants to get into AI and ads. They'll no doubt claim that they're going to do it differently and "respectfully". Personally, I have mozzilla.org, net and com in my Acrylic HOSTS file. If you go to about:config and search for "url" you may be surprised at all the ways that Firefox claims the right to call home without asking." It will be interesting to see how the controversial changes affect Firefox's user base, and whether Mozilla will be dabbling its foot deeper into the AI landscape. Elsewhere, Mozilla has placed Microsoft under fire for using harmful designs and deceptive tactics to give Edge a competitive edge over other browsers in Windows 11. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla has just released a major update for Firefox on desktop platforms. Version 136 is now available on Windows, macOS, and Linux, offering users many new features, such as long-anticipated vertical tabs, an updated sidebar, new tab page improvements, and more. Here is the changelog: Fixes and other changes include the following: You can find the rest of the changelog in the official release notes, including Developer Information, Enterprise Release Notes, Web Platform changes, and more. Existing users can update Firefox by heading to Menu > Help > About Firefox, while everyone else can get the browser from the official website or the Microsoft Store (for Windows 10 and 11 users). Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of February): 874 RIP Matrix | Farewell my friend

Mozilla says it deleted promise because "sale of data" is defined broadly. Firefox maker Mozilla deleted a promise to never sell its users' personal data and is trying to assure worried users that its approach to privacy hasn't fundamentally changed. Until recently, a Firefox FAQ promised that the browser maker never has and never will sell its users' personal data. An archived version from January 30 says: That promise is removed from the current version. There's also a notable change in a data privacy FAQ that used to say, "Mozilla doesn't sell data about you, and we don't buy data about you." The data privacy FAQ now explains that Mozilla is no longer making blanket promises about not selling data because some legal jurisdictions define "sale" in a very broad way: Mozilla didn't say which legal jurisdictions have these broad definitions. Users complain: “Not acceptable” Users criticized Mozilla in discussions on GitHub and Reddit. One area of concern is over new terms of use that say, "When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox." Update at 10:20 pm ET: Mozilla has since announced a change to the license language to address user complaints. It now says, "You give Mozilla the rights necessary to operate Firefox. This includes processing your data as we describe in the Firefox Privacy Notice. It also includes a nonexclusive, royalty-free, worldwide license for the purpose of doing as you request with the content you input in Firefox. This does not give Mozilla any ownership in that content." Mozilla also took heat from users after a Mozilla employee solicited feedback in a connect.mozilla.org discussion forum. "This isn't a question of messaging or clarifying," one person wrote. "You cannot ask your users to give you these broad rights to their data. This agreement, as currently written, is not acceptable." Mozilla announced the new terms of use and an updated privacy policy in a blog post on Wednesday. After seeing criticism, Mozilla added a clarification that said the company needs "a license to allow us to make some of the basic functionality of Firefox possible. Without it, we couldn't use information typed into Firefox, for example. It does NOT give us ownership of your data or a right to use it for anything other than what is described in the Privacy Notice." One of the uses described in the privacy notice has to do with users' location data. Mozilla says it takes steps to anonymize the data and that users can turn the functionality off entirely: Some users were not convinced by Mozilla's statements about needing a license to use data to provide basic functionality. "That's a load of crap and you know it. 'Basic functionality' is to download and render webpages," one person wrote in response to Mozilla's request for feedback. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of January): 487 RIP Matrix | Farewell my friend

Mozilla has updated the Terms of Use for Firefox, alongside an update to its Privacy Notice. This move comes as the organization wants to provide transparency about its commitment to user privacy. Among the new stipulations, users are required to grant Mozilla a "nonexclusive, royalty-free, worldwide license" to use information entered through the browser. This vague terminology has triggered alarm bells, as it leaves ambiguous the nature of the data Mozilla may access, potentially including personal information, saved passwords, or browsing history. Here is the clause in question: Users were puzzled by the new terms, as they believed Mozilla could modify these Terms of Use at any time, while they continue to use the browser. Some called it reminiscent of practices commonly associated with big tech companies, starkly contrasting with the ideals of openness that Mozilla professes to uphold. These accusations were further compounded by Mozilla's right to reserve the ability to terminate user access to Firefox at its discretion. Several people in the community wanted the organization to consider revising its recent Terms of Use to avoid losing the confidence of its user base altogether. However, the situation is not as alarming as some users might have perceived it. An updated statement from Mozilla clarified the issue. The organization insists that Firefox remains open-source software, these new terms only apply to the official version of the browser, arguably establishing a disconnect between the source code and user experience. Here's what it said: The new policy merely allows Firefox to function as it always did, to help users visit web pages, allow the browser permission to store your personal information such as form data, or to access a file that you wanted to upload to a website. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of January): 487 RIP Matrix | Farewell my friend

Mozilla will release Firefox 135 to the stable channel today. The release is a big feature and security update that introduces improved protections and capabilities. Highlights include support for translating Korean, Japanese, simplified Chinese, and Russian, protection against browser history abuses by sites, wider AI chatbot access, and a New Tab layout refresh rolling out. Firefox 135: the major changes Firefox Translations improvements The built-in translations feature of Firefox supports four new languages as part of the release. The following languages can now be translated: Simplified Chinese Japanese Korean The fourth language, Russian, is now available as a language that text can be translated into. The translation feature of Firefox is special, as it runs locally. This is beneficial to privacy, as no information is submitted to remote Internet servers. It also works offline as a consequence. The main downside is that it requires language packs, that users need to download before translation functionality becomes available. The process is automated, provided that an Internet connection is available. Certificate improvements Firefox 135 includes two changes to certificates: The browser enforces certificate transparency now for certificates issued by a certificate authority in Mozilla's Root CA program. The goal is to better protect against misuse through the use of "publicly-run, often independent CT logs". More information about this is available here. The CRLite certificate revocation checking mechanism is being rolled out. This improves the performance of checks "substantially" according to Mozilla. Safeguards against History abuse Going back and forward when browsing the Internet is an essential feature that all web browsers support. Some sites use tricks to pollute the browsing history to make it difficult to go back or forward. Mozilla has integrated a new technique in Firefox 135 that prevents sites from abusing the history API to generate large amounts of entries in the history. This should improve back and forward operations on many sites that abuse the feature. New Tab Page layout Mozilla is rolling out the redesign of the New Tab page to all Firefox users. Previously, it was only made available to users from the United States. The big change is the list of recommended stories that Mozilla displays underneath search and web shortcuts. Other changes and fixes AI chatbot access is rolling out to all users. It is necessary to enable the feature in Firefox Labs or select AI Chatbot from the Firefox sidebar. Credit Card autofill functionality is being rolled out to all users gradually. Mac and Linux users who use the quit keyboard shortcut are now given an option to close the active tab, provided that at least one additional tab is present. The DoNotTrack checkbox is no longer available. Firefox users may check the "Tell websites not to sell or share my data" setting instead. Copy Without Site Tracking is now known as Copy Clean Link. Linux binaries are now provided in XZ format, which improves unpacking performance and reduces the size of files. Developer changes JSON parse with source proposal is now supported The PublicKeyCredential.getClientCapabilities() static method is supported. The mid and rid properties of the RTCOutboundRtpStreamStats interface, and themid property of the RTCInboundRtpStreamStats interface are now supported. Added support for the format field in the browsingContext.captureScreenshot command, allowing clients to specify different file formats (image/png and image/jpg are currently supported) and define the compression quality for screenshots Added support for a post-quantum key exchange mechanism (mlkem768x25519) for HTTP/3. Enterprise changes Not yet published. Security updates / fixes Information is not yet available. We will update the guide once the information is published by Mozilla. Firefox 135.0 download and update Most Firefox installations will receive the update to the new version automatically. This does not happen in real-time though and may take a few days. Users who do not want to wait, and most may not want to, considering that the new version includes security patches, may run a check manually. Just select Menu > Help > About Firefox in Firefox. The browser checks for updates at Mozilla and will download the latest version automatically. Firefox 135 is also available as a direct download from Mozilla's official site. None-stable downloads are also available. Firefox Beta download Nightly download Firefox ESR download Outlook Firefox 136 will be out on March 4, 2025. Expect at least one point release to address smaller bugs and issues. Additional information / resources Firefox 135 release notes Firefox 135 for Developers Firefox 135 for Enterprise Firefox Security Advisories Firefox Release Schedule Closing Words Firefox 135 is a big release, unlike Firefox 134, which was rather small. Translations support for three major Asian languages is probably the biggest feature of the release, but safeguards against browser history pollution is also welcome. What is your take on the release? Have you tried it already? Feel free to leave a comment down below. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ | 2025 (till end of January): 487 RIP Matrix | Farewell my friend

Mozilla has released another small update for Firefox 134. Version 134.0.2 is now available for download within the browser or the official website, and the update fixes several issues and bugs. Mozilla's engineers resolved problems with crash reports not showing for some locales, non-working anchored HTML links, bugs with developer tools and extension debugging, and more. Here is the official changelog: Firefox version 134.0.2 joins the recently released version 134.0.1 that fixed bugs with the user interface hanging on certain websites like Google and YouTube, startup crashes after upgrading to Firefox 133, and bugs with the search engine selection menus. You can check out the changelog in our dedicated article. As for version 134.0, which was released on January 7, it introduced new features like improved touchpad gestures on Linux (you can now interrupt kinetic scrolling by placing two fingers on the touchpad), hardware-accelerated playback of HEVC videos on Windows, a refreshed layout of the new tab page for more users in the United States and Canada, and more. The complete release notes for Firefox 134 are available here. You can download Firefox 134.0.2 from Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ RIP Matrix | Farewell my friend

Firefox has supported profiles for a very long time. This may come as a surprise to many users, as the visibility of the feature is lacking. Veteran users know that they can run Firefox with the parameter -p to start the profile manager. There is also about:profiles, which can be loaded in Firefox's address bar. From a usability point of view, it compares badly against Chromium-based browsers. That is probably the main reason why Mozilla set out to improve the experience. The new Profile Manager of the Firefox web browser has just been enabled in Firefox Nightly. This is the first step towards enabling the new manager in Firefox Stable, the version that is most widely used. Good to know: Profiles add more to the browser than just a fresh coat of paint and a new icon. These act as independent users, which means that they have their own set of bookmarks, open tabs, installed extensions and other customizations. Here is what you can expect. Firefox's Profile Manager A click on the Menu-icon in Firefox's toolbar displays the new Profiles entry. Another click displays all existing profiles, an option to create a new profile, and to manage all profiles. You can load any profile with a click on its name or icon. This loads the profile in a new browser window without closing the existing one. A click on the new profile option loads the creator page. Each profile has a name, theme, and avatar that you can pick. Select the manage profile entry instead to get an overview and management options. Here you may do the following: Edit any profile. Delete a profile. Create a new profile. Toggle "choose a profile when Nightly opens". This is the same window that opens when you keep the option to choose a profile when the browser opens enabled. Here is how it looks. Note that the profile that was used previously will be loaded when you disable the option. You may then still switch to another profile using the profile menu. For those wondering, the old profile manager is still available. You can still launch Firefox with the -p parameter to load it, at least for now. Closing Words The new profiles entry under menu in Firefox improves the visibility of the feature. This highlights the feature to many Firefox users, which is good. Now it is your turn. Do you use profiles in your browser of choice? If so, how many do you use and for which purpose? Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ RIP Matrix | Farewell my friend

Mozilla has issued a small bug-fixing update for the recently released Firefox 134. Version 134.0.1 is now available for download with patches for a few bugs affecting popular websites and services. According to the official changelog, Firefox 134.0.1 patches freezes on some of Google's websites, namely YouTube and Docs. Users reported that in certain scenarios, the UI hangs and stops responding. Also, Mozilla's engineers fixed a crash on startup that occurs after updating from version 133 and the non-working selection and context menus after reverting to an earlier version of the browser. Here is the complete changelog for Firefox 134.0.1: In case you missed it, Mozilla released Firefox 134.0 last week. The first major update of 2025 arrived with a few major changes, such as improved trackpad support on Linux (you can now stop momentum scrolling by placing two fingers on the touchpad), hardware-accelerated playback of HEVC videos on Windows, a refreshed New Tab layout for users in the US and Canada, and more. You can check out the full release notes for Firefox 134.0 in our dedicated coverage. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ RIP Matrix | Farewell my friend

Mozilla has released the latest stable version of Firefox today, 134.0. If you recall, the beta 2 version of this update tried to sneak in a way to make itself the default browser. With this new stable release, Firefox has finally gained support for hardware-accelerated playback of HEVC (high efficiency video codec) or H.265 on Windows. For reference, Google Chrome received support for H.265 decoding back in 2022 back when Mozilla was pushing back against it. Another change is a refreshed New Tab layout (image below), as well as improvements to the browser's pop-up blocker as they should no longer be as overly aggressive. The full changelog is given below: Several security fixes have also landed with this new version. They are: CVE-2025-0244: Address bar spoofing using an invalid protocol scheme on Firefox for Android CVE-2025-0245: Lock screen setting bypass in Firefox Focus for Android CVE-2025-0246: Address bar spoofing using an invalid protocol scheme on Firefox for Android CVE-2025-0237: WebChannel APIs susceptible to confused deputy attack CVE-2025-0238: Use-after-free when breaking lines in text CVE-2025-0239: Alt-Svc ALPN validation failure when redirected CVE-2025-0240: Compartment mismatch when parsing JavaScript JSON module CVE-2025-0241: Memory corruption when using JavaScript Text Segmentation CVE-2025-0242: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 CVE-2025-0243: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 CVE-2025-0247: Memory safety bugs fixed in Firefox 134 and Thunderbird 134 You can download the Firefox version 134.0 from the Neowin software stories page or from Mozilla's official site. Source Hope you enjoyed this news post. Thank you for appreciating my time and effort posting news every day for many years. News posts... 2023: 5,800+ | 2024: 5,700+ RIP Matrix | Farewell my friend