| Version | Change log |
| Portable Firefox 145.0.2 Nov 27, 2025 |
Fixed: Fixed an issue causing breakage on sites using Three.js. (Bug 1995939) Fixed a failure to open Firefox from the desktop launcher on older versions of Windows 10. (Bug 2000411) Fixed Web compatibility issues with Rogers. Rogers customers would see a broken iframe with "Firefox Can’t Open This Page" when viewing bills, rather than the billing info. (Bug 1996823) Fixed an issue in the Web Developer Tools preventing copy all or save all requests as HAR. (Bug 1995694) |
| Portable Firefox 145.0.1 Nov 19, 2025 |
Fixed: Fixed an issue causing breakage on sites using Three.js. (Bug 1995939) Fixed a failure to open Firefox from the desktop launcher on older versions of Windows 10. (Bug 2000411) Fixed Web compatibility issues with Rogers. Rogers customers would see a broken iframe with "Firefox Can’t Open This Page" when viewing bills, rather than the billing info. (Bug 1996823) Fixed an issue in the Web Developer Tools preventing copy all or save all requests as HAR. (Bug 1995694) |
| Portable Firefox 145.0 Nov 12, 2025 |
New: Add, edit, and delete comments to make your own notes in PDFs (summaries, questions, tasks, etc.). The comment sidebar helps you scan all your comments and quickly jump to them, which is handy for long or heavily marked-up PDFs. This version introduces a new phase of privacy protections, building on our research on reducing browser fingerprinting. These new defenses cut the percentage of users seen as unique almost in half, ensuring a safer and more private browsing experience in Private Browsing or when using Enhanced Tracking Protection set to Strict. Need a reminder of what tabs are in a group? Hover over the tab group name to get a preview of the tabs inside without opening it. Tab Hover Preview Video demonstration You can now access and manage your saved passwords right from the sidebar—no need to open a new tab or window. Stay on the page you’re on and get to your logins faster. Copy Link to Highlight allows users to share arbitrary sections of a page with others by copying a link through the context menu with a given selection The Translations feature has an improved experience when translating between languages with different script directions. New brand-inspired wallpapers are available for New Tab on desktop, with versions for both light and dark mode. With the new Open links from apps next to your active tab setting, you can have links from other applications open next to your active tab instead of at the end of the tab strip. Enhanced Bounce Tracking Protection’s stateless mode is now enabled by default in ETP Strict, blocking more advanced tracking techniques based on redirection For most Windows users, the existing desktop shortcut for launching Firefox has been replaced with the desktop launcher, a small program that will launch Firefox if it is installed, but if it is not installed will prompt the user to install Firefox. This will provide an easy installation point for Firefox users who acquire a new Windows device, where Firefox will not |
| Portable Firefox 144.0.2 Oct 29, 2025 |
Fixed: Fixed an issue where the list of available locales in about:settings contained more locales than were downloaded or currently supported. (Bug 1994642) Fixed an issue where using the keyboard to open the Unified Search dropdown was inconsistent. The dropdown now expands properly, allowing users to select a search engine using the keyboard. (Bug 1979826) Fixed an issue where curated photo collections on Microsoft OneDrive's Photos “For You” page failed to load, showing a gray screen instead of content. Collections now display as expected. (Bug 1986533) Fixed a startup crash affecting Windows users with Avast or other security software installed. (Bug 1992678) Fixed an issue on macOS where the emoji picker shortcut and menu entry stopped working after switching between apps. (Bug 1980815) Fixed an issue on macOS where dragging images from Firefox into third-party apps like Preview could fail or behave unexpectedly. (Bug 1995345) Fixed performance and video playback issues on macOS 26 (Tahoe) that occurred when the system was under heavy load. (Bug 1995638) Fixed a browser hang on macOS 26 (Tahoe) that could occur when bookmark folders contained loops or repeated references to themselves. (Bug 1995621) |
| Portable Firefox 130.0.1 Sep 18, 2024 |
New: Firefox now allows translating selected text portions to different languages after a full-page translation. Firefox now offers an easy way to try experimental features with a new Firefox Labs page in Settings. AI Chatbot feature lets you add the chatbot of your choice to the sidebar, for quick access as you browse. Picture-in-Picture auto-open experiment enables PiP on active videos when switching tabs. Overscroll animations are now enabled as the default behavior for scrollable areas on Linux. Users in the United States and Canada can view local weather directly on the new tab page. Additionally, they have the option to select a specific location to see current weather conditions. Fixed: Various security fixes. Fixed an issue where Copy and Paste context menu items intermittently were not enabled when expected. Changed: The following languages are now supported by Firefox translation: Catalan Croatian Czech Danish Indonesian Latvian Lithuanian Romanian Serbian Slovak Vietnamese Enterprise: Policies: The PrivateBrowsingModeAvailability policy had been added to provide better control over private browsing. (This will be in the next ESR.) Special Notes: This is the last major release of the Firefox 115 ESR for enterprises. Firefox 115 ESR goes out of support for enterprises on October 1, 2024. At that time Firefox 115 ESR users will be upgraded to the Firefox 128 ESR. We are extending Firefox 115 support for Windows 7/8 users. If you need to prevent upgrades for any reason, you can use the AppUpdatePin policy. Developer: HTML: The name attribute of the <details> element now allows the grouping of <details> elements, where only one element within a group can be open at a time. This allows you to create an exclusive accordion without using JavaScript (Firefox bug 1856460 and Firefox bug 1909613). The dir and lang global attributes now have improved inheritance, including how they work with shadow DOM (Firefox bug 1876163. CSS: The hyphens CSS property i |
| Portable Firefox 130.0 Sep 9, 2024 |
New: Firefox now allows translating selected text portions to different languages after a full-page translation. Firefox now offers an easy way to try experimental features with a new Firefox Labs page in Settings. AI Chatbot feature lets you add the chatbot of your choice to the sidebar, for quick access as you browse. Picture-in-Picture auto-open experiment enables PiP on active videos when switching tabs. Overscroll animations are now enabled as the default behavior for scrollable areas on Linux. Users in the United States and Canada can view local weather directly on the new tab page. Additionally, they have the option to select a specific location to see current weather conditions. Fixed: Various security fixes. Fixed an issue where Copy and Paste context menu items intermittently were not enabled when expected. Changed: The following languages are now supported by Firefox translation: Catalan Croatian Czech Danish Indonesian Latvian Lithuanian Romanian Serbian Slovak Vietnamese Enterprise: Policies: The PrivateBrowsingModeAvailability policy had been added to provide better control over private browsing. (This will be in the next ESR.) Special Notes: This is the last major release of the Firefox 115 ESR for enterprises. Firefox 115 ESR goes out of support for enterprises on October 1, 2024. At that time Firefox 115 ESR users will be upgraded to the Firefox 128 ESR. We are extending Firefox 115 support for Windows 7/8 users. If you need to prevent upgrades for any reason, you can use the AppUpdatePin policy. Developer: HTML: The name attribute of the <details> element now allows the grouping of <details> elements, where only one element within a group can be open at a time. This allows you to create an exclusive accordion without using JavaScript (Firefox bug 1856460 and Firefox bug 1909613). The dir and lang global attributes now have improved inheritance, including how they work with shadow DOM (Firefox bug 1876163. CSS: The hyphens CSS property i |
| Portable Firefox 129.0.2 Aug 20, 2024 |
Fixed: Fixed an issue with screen readers prompting "Alert" when hovering over tabs. (Bug 1908873) Fixed an issue where drag-and-drop operations would not work as expected with extensions that rely on this functionality. (Bug 1911486) |
| Portable Firefox 129.0.1 Aug 14, 2024 |
Fixed playback issues on some websites with copyrighted video served via digital rights management. (Bug 1911283) Fixed a crash when dragging a video file onto some websites. (Bug 1910990) |
| Portable Firefox 129.0 Aug 7, 2024 |
Fixed an issue causing some sites to not load when connecting via HTTP/2. (Bug 1908161, Bug 1909666) Fixed collapsed table rows not appearing when expected in some situations. (Bug 1907789) Fixed the Windows on-screen keyboard potentially concealing the webpage when displayed. (Bug 1907766) |
| Portable Firefox 128.0.3 Jul 29, 2024 |
Fixed an issue causing some sites to not load when connecting via HTTP/2. (Bug 1908161, Bug 1909666) Fixed collapsed table rows not appearing when expected in some situations. (Bug 1907789) Fixed the Windows on-screen keyboard potentially concealing the webpage when displayed. (Bug 1907766) |
