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- Nov 11, 2025
- Parsed from source:Nov 11, 2025
- Detected by Releasebot:Nov 11, 2025
145.0 Firefox Release
Firefox 145 introduces in-PDF comments, stronger anti-fingerprinting protections, tab group previews, a sidebar password manager, copy-link highlights, translations improvements, new wallpapers, and open-link-from-apps behavior, plus general UI and security updates.
Version 145.0
first offered to Release channel users on November 11, 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.
- 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 be installed by default, but the desktop launcher program may have synced via OneDrive or other cloud storage product. Learn more.
Fixed
- Various security fixes.
Changed
- Firefox no longer supports 32-bit Linux systems. We recommend installing the 64-bit version for continued updates and support.
- Horizontal tabs are now slightly more rounded to match the look of vertical tabs. Buttons and text inputs, including the address bar, have also been updated for consistency.
- When no extensions are installed, clicking the Extensions button now shows a message highlighting how extensions can enhance your browsing, with links to the Firefox Add-ons store.
- Local translation models are now compressed with Zstandard, reducing download sizes and on-device storage consumption. As always, all Firefox translations happen securely and privately on your local device, unlike other browsers that translate using cloud services.
- We updated default automation preferences to better support Agentic browsing, reducing the steps agents need to complete a task and chances for the agent to get stuck.
Enterprise
- You can find information about policy updates and enterprise specific bug fixes in the Firefox for Enterprise 145 Release Notes.
Developer
- Microsoft UI Automation phased release rollout at 100%. Microsoft UI Automation is the new accessibility framework for Microsoft Windows. This will provide better assistive technology (AT) support and performance on Windows for current and future assistive technologies.
Web Platform
- Support has been added for the Atomics.waitAsync proposal, which is a non-blocking, asynchronous version of Atomics.wait. This allow synchronization of threads based upon the value in a shared memory location, for more details please consult our MDN documentation.
- Firefox now supports the new Integrity-Policy header for enforcing sub-resource integrity for scripts. Further implementation of this header is underway.
- Added Matroska support for the most commonly used codecs: AVC, HEVC, VP8, VP9, AV1, AAC, Opus, and Vorbis.
- The text-autospace property is now supported, allowing automatic spacing adjustments between characters from different scripts.
- The WebGPU DOM API (spec; MDN) is now available on macOS 26 (Tahoe) on Apple Silicon. For details, see the Mozilla Graphics Team Blog.
Community Contributions
- With the release of Firefox 145, we are pleased to welcome the developers who contributed their first code change to Firefox in this release, 5 of whom were brand new volunteers! Please join us in thanking each of these diligent and enthusiastic individuals, and take a look at their contributions:
- Alex Hill: 627771
- Khalid AlHaddad: 1882718, 1975161
- Mag Mukendi: 1982207
- Mateo Mihm: 1957059
- Tatsunori Uchino: 1950321
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Firefox Privacy Notice
Original source Report a problem - Oct 28, 2025
- Parsed from source:Oct 28, 2025
- Detected by Releasebot:Oct 29, 2025
144.0.2 Firefox Release
Firefox 144.0.2 lands with broad fixes from locales and keyboard search to OneDrive photos, Avast conflicts, macOS emoji and drag‑and‑drop, performance on Tahoe, and a security fix. First offered Oct 28, 2025. A tidy stability and usability update.
Version 144.0.2, first offered to Release channel users on October 28, 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)
Security fix.
Reference link to 144.0 release notes.
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Firefox Privacy Notice
Original source Report a problem - Oct 14, 2025
- Parsed from source:Oct 14, 2025
- Detected by Releasebot:Oct 14, 2025
144.0 Firefox Release
Firefox 144 rolls out focused tab groups, new global profile management, PiP window control without pausing video, stronger login encryption, and Google Lens image search plus Perplexity AI in the address bar. It also adds many translation languages and a broad slate of Web Platform and developer updates.
Version 144.0, first offered to Release channel users on October 14, 2025
New
- Focus on just one tab in a group without the clutter. Your active tab now stays in view, keeping things tidy even with the group collapsed.
- We’re excited to share another tab groups update that addresses a top request from our community! You can now drag a tab into a collapsed group without automatically expanding it. It’s a quick way to stay organized while minimizing visual distractions.
- Profile management, now available to all users globally, helps protect your privacy and stay focused by separating your online life into distinct profiles — for work, school, vacation planning, or whatever you choose. You can now name your profiles and customize them with avatars and color themes for easy recognition, then quickly switch between them — all while keeping bookmarks, tabs, and browsing history completely separate.
- You can now close a Picture-in-Picture window without pausing the video. Press Shift + Click on the close button or use Shift + Esc to exit while keeping playback uninterrupted.
- Logins stored in the Firefox Password Manager are now encrypted on disk using a modern encryption scheme (AES-256-CBC), replacing the older 3DES-CBC. This change improves local data protection. Logins synced through Firefox Sync remain end-to-end encrypted and already use AES-256-GCM.
- Visual search powered by Google Lens
With just a right-click on any image, you can now:- ✨ Find similar products, places, or objects
- ✨ Copy, translate, or search text from images
- ✨ Get inspiration for learning, travel, or shopping
Look for the new “Search Image with Google Lens” option in your right-click menu (highlighted with a NEW badge at first).
This is a desktop-only feature, available worldwide. Your default search engine must be set to Google in order to use it.
- Perplexity AI Search in Firefox
On desktop, Firefox now includes Perplexity, an AI-powered answer engine built into the browser. Perplexity delivers direct, conversational answers to complex questions, helping you get quick summaries, accurate references, or creative inspiration without digging through multiple sources. It’s available worldwide from the address bar via the unified search button. - The following languages are now available for translation:
- Azerbaijani
- Bangla
- Icelandic
Fixed
- Various security fixes.
- The following languages have improved translation quality:
- Arabic
- Bulgarian
- Catalan
- Chinese (Simplified)
- Czech
- Dutch
- Estonian
- Finnish
- French
- German
- Hungarian
- Italian
- Japanese
- Portuguese
- Persian
- Spanish
- Ukrainian
Changed
- On Windows, when opening a link from another application, Firefox will only use a window on the current virtual desktop or open a new window if needed.
Enterprise
- You can find information about policy updates and enterprise specific bug fixes in the Firefox for Enterprise 144 Release Notes.
Developer
- You can now jump to a CSS custom property's definition from within the var() function in style rules.
- The events tooltip in the Inspector now shows a badge besides custom events, making it easier to differentiate them from built-in events.
Web Platform
- Firefox now supports the Element.moveBefore API.
- Firefox now supports math-shift compact.
- Firefox now supports PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric.
- Firefox now supports the command and commandfor attributes.
- Firefox now supports the View Transitions API Level 1. The View Transitions API provides a mechanism for easily creating animated transitions between different website views.
- Dithering is now applied when linear-gradient, conic-gradient, and radial-gradient are rendered using hardware WebRender.
- Firefox now supports the upsert proposal. This adds getOrInsert and getOrInsertComputed methods to Map and WeakMap. These methods either return the value associated with a key, or insert a default value, and then return that value, simplifying handling of cases where it's not known if a key is already present in the Map or WeakMap.
- Firefox now supports the lock() and unlock() methods of ScreenOrientation interface on Windows tablets and Android devices.
- Firefox now supports worker transfer for RTCDataChannel.
- Firefox now supports the resizeMode getUserMedia constraint, allowing developers to crop and downscale video captured from a camera to any resolution they choose.
- Firefox now supports the WebGPU GPUDevice.importExternalTexture API on Windows.
- WebCodecs on Windows now has a batch-encoding path for VideoEncoder, improving performance with higher throughput and lower submission latency due to a larger default batch size.
- Gecko-specific CSS2Properties was renamed to CSSStyleProperties, to align with the latest web standard and for better interoperability with other browser engines.
Community Contributions
- With the release of Firefox 144, we are pleased to welcome the developers who contributed their first code change to Firefox in this release, 12 of whom were brand new volunteers! Please join us in thanking each of these diligent and enthusiastic individuals, and take a look at their contributions:
- Alice Boxhall: 1981341
- David [:david-loe]: 1726108
- Diogo Sousa: 1987258
- fdangers: 1975105
- jocelyne.ah1: 1980995
- Josh Berry: 1984553
- Kyle Huey [:khuey]: 1983994
- Martin Bruse: 1987128
- Mountain Dude: 1984695
- parisoplop: 1984782
- Riz: 1280266
- s175911: 1985163
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- October 2025
- No date parsed from source.
- Detected by Releasebot:Oct 3, 2025
Firefox 143.0.4
Firefox fixes connection fallback to reduce slow or failed loads on Google sites when certain third party software is installed. Documented with Bug 1990699 and tied to the 143.0.3 release notes. Expect snappier, more reliable browsing.
Fixed
Improved Firefox' connection fallback behavior to mitigate sporadic slow/failed loads on some Google sites on systems with certain third-party software installed. (Bug 1990699)
Reference link to 143.0.3 release notes.
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Original source Report a problem
Putting people before profits since 1998 - Sep 30, 2025
- Parsed from source:Sep 30, 2025
- Detected by Releasebot:Sep 30, 2025
143.0.3 Firefox Release
Version 143.0.3 fixes: drag-to-pin cue timing, extensions updates via Add-ons Manager, Firefox View collapse/expand, WebExtensions startup crash, extension settings after install, slower loads on UDP-blocked networks, plus stability and security fixes.
Version 143.0.3, first offered to Release channel users on September 30, 2025
Fixed
- Adjusted the timing of the new drag-to-pin interaction cue for better reliability. (Bug 1989344)
- Fixed an issue that prevented some extensions from updating via the Add-ons Manager. (Bug 1984724)
- Fixed a regression that prevented Firefox View sections from collapsing/expanding as expected. (Bug 1989200)
- Addressed a WebExtensions storage issue that could cause Firefox to crash on startup with certain extensions installed. (Bug 1989840)
- Fixed an issue where opening an add-on's "Extension settings" from the post-install prompt could break the Customize tab and some keyboard shortcuts until restart. (Bug 1983869)
- Reduced long delays when loading certain websites while connected to networks that block UDP connections. (Bug 1980812)
- Various stability and security fixes.
Reference link to 143.0.1 release notes.
Original source Report a problem - Sep 19, 2025
- Parsed from source:Sep 19, 2025
- Detected by Releasebot:Sep 29, 2025
143.0.1 Firefox Release
Firefox 143.0.1 patches a tab crash caused by DLL injection, delivering a stability fix with the Sept 19, 2025 release.
143.0.1 Firefox Release
September 19, 2025
Version 143.0.1, first offered to Release channel users on September 19, 2025
Fixed
- Fixed a tab crash experienced by some users caused by DLL injection. (Bug 1872261)
Reference link to 143.0 release notes.
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