Browsers Release Notes
Release notes for major desktop and mobile web browsers
Products (12)
Latest Browsers Updates
- Oct 15, 2026
- Date parsed from source:Oct 15, 2026
- First seen by Releasebot:Oct 17, 2026
v1.23.3b
Zen Browser releases an update with security, performance, memory, and crash fixes, smoother scrolling, a new command-line space option, and improved downloads and PDF accessibility. It also updates Firefox to version 158.0.
If you encounter any issues, please report them on the issues page.
Security
Various security fixes.
Fixed
- Fixed various animation, urlbar and UI performance issues.
- Fixed Library media tab requesting onedrive to download all files. (Bug gh-15888)
- Fixed unwanted label next to the search icon in urlbar. (Bug gh-14856)
- Fixed Avahi access so CUPS printers are listed in flatpak sandbox. (Bug gh-9651)
- Fixed various memory leak issues. (Bug gh-15954)
- Fixed a crash that could occur while Zen loaded website icons (favicons).
- Fixed menus such as List all tabs, Settings, etc being hard to read with a Windows High Contrast theme. Menu background and text colors now follow the Background and Text colors chosen for a custom contrast theme in Windows Settings.
- Other bug fixes and improvements.
Added
- Updated Firefox to 158.0
- Added a
--spaceoption to the command line interface. - Library will now show a 'Open in Folder' option and download speed when hovering over the toolbar icon.
- Zen now creates more accessible PDFs when saving a page as PDF, and when printing on Linux and macOS. This also fixes a variety of PDF rendering issues, such as missing math symbols.
Change
- Space routing regex will now match URLs as case-insensitive.
- Library's widget hover list will now only display recently downloaded files.
- Zen no longer rounds scroll positions to whole screen pixels. Scrolling is now smoother and more precise, especially on high-resolution displays or when a page is zoomed.
- Oct 15, 2026
- Date parsed from source:Oct 15, 2026
- First seen by Releasebot:Oct 16, 2026
New Alpha Release: Tor Browser 16.0a14
Tor Browser 16.0a14 brings important Firefox security updates alongside refreshed Tor, NoScript, and platform components. The alpha release is available for testing, with Tor advising users who need dependable security and privacy to choose the stable channel.
Tor Browser 16.0a14 is now available from the Tor Browser download page and also from our distribution directory.
This version includes important security updates to Firefox.
⚠️ Reminder: The Tor Browser Alpha release-channel is for testing only. As such, Tor Browser Alpha is not intended for general use because it is more likely to include bugs affecting usability, security, and privacy.
If you are an at-risk user, require strong anonymity, or just want a reliably-working browser, please stick with the stable release channel.
Send us your feedback
If you find a bug or have a suggestion for how we could improve this release, please let us know.
Full changelog
The full changelog since Tor Browser 16.0a13 is:
- All Platforms
- Updated NoScript to 13.6.36.90201984
- Updated Tor to 0.4.9.14
- Bug tor-browser#45380: Rebase Tor Browser alpha onto 153.5.0esr
- Bug tor-browser#45382: Backport Security Fixes from 158
- Windows + macOS + Linux
- Updated Firefox to 153.5.0esr
- Android
- Updated GeckoView to 153.5.0esr
- Build System
- All Platforms
- Bug tor-browser-build#41885: Update changelogs as a last step in relprep.py
- Bug tor-browser-build#41896: Update Lyrebird to 0.9.0
- Bug tor-browser-build#41898: Separate MB and TB toolchain archives in https://nightlies.tbb.torproject.org/nightly-builds/toolchains/
- Windows + Linux + Android
- Updated Go to 1.26.9
- All Platforms
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- Oct 15, 2026
- Date parsed from source:Oct 15, 2026
- First seen by Releasebot:Oct 16, 2026
Version 155.0.4283.60: October 15, 2026 (Stable) - Update 1
Microsoft Edge updates sleeping tabs to enter sleep after 15 minutes by default and adds configurable security update alerts for administrators, including notifications for qualifying zero-day fixes. The release also includes bug fixes and performance improvements.
Release Summary
Category Description Feature Updates Updates to sleeping tabs and security alerts in Microsoft Edge. Fixes Fixed various bugs and performance issues. Security Stable channel security updates are listed here.Feature Updates
- Sleeping tabs timer default changed. Starting with Microsoft Edge version 152.0.4188.0, the default sleeping tabs timer changed from 2 hours to 15 minutes. Users can manage the experience in Edge settings at edge://settings/system/managePerformance.
- Security Update Alerts in the Edge management service. Administrators can choose a severity threshold and receive alerts when a new Edge update includes security fixes that meet or exceed that level, including zero-day fixes. This helps organizations quickly identify updates that may require attention while avoiding unnecessary notifications for routine releases.
- Oct 15, 2026
- Date parsed from source:Oct 15, 2026
- First seen by Releasebot:Oct 16, 2026
Arc for macOS by Arc
October 15, 2026 —
Arc for macOS releases a security update with Chromium 155, addressing numerous vulnerabilities, including seven rated most serious.
Nice to see you again! Version 1.169.0 gets Arc onto Chromium 155.0.8059.80, sealing up a long list of security weak spots, seven of them in the most serious category, so the sites you visit have fewer openings to cause trouble. This one is purely a safety tune-up, so grab it whenever you get a moment. See you on the next one!
Original source - Oct 15, 2026
- Date parsed from source:Oct 15, 2026
- First seen by Releasebot:Oct 15, 2026
October 15, 2026 —
Arc For Windows updates to Chromium 155.0.8059.80, closing numerous security vulnerabilities, including seven critical issues.
Nice to see you again! Version 1.128.0 gets Arc onto Chromium 155.0.8059.80, sealing up a long list of security weak spots, seven of them in the most serious category, so the sites you visit have fewer openings to cause trouble. This one is purely a safety tune-up, so grab it whenever you get a moment. See you on the next one!
Original source - Oct 14, 2026
- Date parsed from source:Oct 14, 2026
- First seen by Releasebot:Oct 17, 2026
Release Notes v1.97.57 (Oct 14, 2026)
Brave Browser upgrades Chromium to version 155.0.8059.80.
- Upgraded Chromium to 155.0.8059.80. (#59893) (Changelog for 155.0.8059.80)
- Oct 14, 2026
- Date parsed from source:Oct 14, 2026
- First seen by Releasebot:Oct 15, 2026
Release Notes v1.97.57 (Oct 14, 2026)
Brave Browser fixes Tor connection issues, removes a Wallet sync toggle, and upgrades to Chromium 155.0.8059.80.
- Removed “Payment methods and other info from Brave Wallet” sync data type toggle. (#59689)
- Fixed issue where Tor windows could fail to connect to the Tor network in certain cases. (#59824)
- Upgraded Chromium to 155.0.8059.80. (#59893) (Changelog for 155.0.8059.80)
Origin Release Notes
- Removed “Payment methods and other info from Brave Wallet” sync data type toggle. (#59689)
- Upgraded Chromium to 155.0.8059.80. (#59893) (Changelog for 155.0.8059.80)
- Oct 14, 2026
- Date parsed from source:Oct 14, 2026
- First seen by Releasebot:Oct 14, 2026
Opera 137.0.6036.63 Stable update
Opera Desktop releases a stability and compatibility update that restores tabs after unexpected shutdowns, fixes WhatsApp Web and Paramount+ playback issues, brings back missing Sync settings, and resolves crashes across several browser interfaces.
Hello!
We’ve rolled out a new Opera Stable release, version 137.0.6036.63, focused on stability and site compatibility.
The big news: Emergency Session Restore is now enabled on all streams, so if Opera shuts down unexpectedly, your tabs come back when you reopen the browser.
On the site compatibility side, we fixed WebCodecs H.264 encoder errors on WhatsApp Web and Paramount+ playback failing with Error 100. Sync is also working again for users who were missing the account options in Settings.
The rest of the release is a round of crash fixes across the search infobar, Translate UI, Autofill popup, and extension side panels – mostly on Windows.
You can find the full list in the changelog.
Happy browsing!
Installation links
- Opera Stable for Windows
- Opera Stable for macOS
- Opera Stable for Linux – deb packages
- Opera Stable for Linux – RPM packages
- Opera Stable for Linux – snap package
- Oct 14, 2026
- Date parsed from source:Oct 14, 2026
- First seen by Releasebot:Oct 14, 2026
Opera 139 developer
Opera Desktop releases Developer 139 with a new built-in ad blocker tool for removing distracting page elements, plus Chromium updates and fixes for tabs, pop-ups, settings, video playback, and stability.
Hello!
We’ve rolled out a new Opera Developer release, version 139, with a Chromium bump, and a wide batch of fixes across vertical tabs, sidebar, settings, and stability.
New in the ad blocker
- We’ve added a new way to take back your page from distracting content. Right-click any ad, banner, or annoying box and choose Block this element, it disappears instantly. Need to tidy more at once? Pick Block multiple elements to highlight and remove items one by one with a crosshair, with a small slider to catch repeated blocks like ad rows or card lists. Everything is instantly reversible with an Undo button, and your blocked items are remembered per site, so the clutter stays gone on your next visit. Wipe it up! is built right into the Opera ad blocker: no setup required.
But in our regular release
- Updated Chromium to 154.0.8037.17
- Enabled #popup-protection: only one pop-up can be displayed at a time now, and extended the mechanism to cover all pop-ups
- Added drag and drop for the auto-hiding vertical tabs panel, both within the same window and across windows
- Fixed WebCodecs H.264 encoder errors on web.whatsapp.com and Paramount+ video playback failure (Error 100)
- Fixed websites not reacting to touch on touch screens
- Fixed sidebar remaining partially visible (a 4px strip) after auto-hide
- Fixed missing options that prevented Opera account synchronization
- Fixed a number of crashes across autofill, AI panel, DevTools, tab collection, and the Windows installer
- A round of React Settings polish: added favicons, fixed missing icons, search results for “Browser Connector”, and the “Automatically translate these languages” section
Known issues
- Clicking the “+” button in the tab tooltip does not let you select additional emoji, we’re working on a fix.
For a full list of changes check out our changelog.
Happy browsing!
Installation links
- Opera developer for Windows (Using the Opera developer for Windows installer means you have accepted the Opera for Computers EULA)
- Opera developer for Windows (Portable version)
- Opera developer for macOS
- Opera developer for Linux – deb packages
- Opera developer for Linux – RPM packages
- Oct 13, 2026
- Date parsed from source:Oct 13, 2026
- First seen by Releasebot:Oct 14, 2026
- Modified by Releasebot:Oct 17, 2026
158.0 Firefox Release
Firefox releases smarter Smart Window form suggestions, accessible PDF improvements, JPEG XL support, custom wallpaper libraries and new translation languages. The update also smooths scrolling, fixes interface and crash issues, and adds CSS and web platform capabilities.
New
You can now fill in forms faster in Smart Window. When clicking into a form field or selecting Fill from sources, Smart Window will now suggest data to use based on your relevant open tabs and saved autofill data.
This feature is part of a progressive roll out.
Firefox now creates more accessible PDFs when saving a page as PDF, and when printing on Linux and macOS. This also fixes a variety of PDF rendering issues, such as missing math symbols.
Firefox now supports the JPEG XL image format, which generally has better compression than WebP, JPEG, PNG, and GIF.
New Tab now keeps a library of custom wallpapers under Your images, rather than only the most recent one.
Firefox's translations feature now supports the following languages:
- Albanian
- Belarusian
- Filipino
Fixed
Fixed website icons (favicons) in address bar results blending into the highlight color when selecting a result with the keyboard on Ubuntu's default theme.
Fixed a crash that could occur while Firefox loaded website icons (favicons).
Fixed the first letter of each search engine's name being underlined in the Unified Search Button menu in the address bar on Windows and Linux, which could cause conflicting keyboard shortcuts.
Fixed menus such as List all tabs, Settings, and Unified Search being hard to read with a Windows High Contrast theme. Menu background and text colors now follow the Background and Text colors chosen for a custom contrast theme in Windows Settings.
Various security fixes.
Changed
Firefox no longer rounds scroll positions to whole screen pixels. Scrolling is now smoother and more precise, especially on high-resolution displays or when a page is zoomed.
Enterprise
For Firefox Enterprise updates and fixes, see the Firefox Enterprise Release Notes. For policy changes, see the Firefox admin docs changelog.
Developer
Developer Information
Fixed an issue where the Network Monitor could miss WebSocket messages if they arrived immediately after a connection was established.
Web Platform
Firefox now supports typed arithmetic in CSS calc(), allowing units to be multiplied and divided within math functions.
Added support for the navigate option for the Notification constructor and ServiceWorkerRegistration.showNotification(), which specifies a URL to navigate to when the notification is clicked.
The WebAuthn conditional UI is now shown on input elements with an autocomplete="webauthn" attribute. Previously, it was only shown when the attribute included another autofill field value, such as autocomplete="username webauthn". (Learn more)
Firefox now supports the cache value for PerformanceResourceTiming.deliveryType, allowing websites to identify resources served from the HTTP cache.
The WebGL extension EXT_polygon_offset_clamp is now available on compatible devices.
Unresolved
Web apps launched with the third-party PWAsForFirefox tool may fail to start in Firefox 158 and show the error "The installation seems to be incomplete." Updating PWAsForFirefox to version 2.20.1 or later fixes the issue. If the error persists, select "Reinstall runtime" and then "Patch profiles and runtime" in the PWAsForFirefox extension settings.
Community Contributions
With the release of Firefox 158, we are pleased to welcome the developers who contributed their first code change to Firefox in this release, 20 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:
- :cat: 2071142
- Adham: 1985986
- Anand Balaji: 2072754
- Calvin Lei-Cramer: 1975584
- Collins Kubu: 2069323
- Daniel mungai chege: 2072565
- f3tch [:f3tchcodes]: 1492357, 1917288, 1957843, 2068045, 2070577
- foued: 2070398
- harry75369: 2000420, 2006226, 2071759
- HojunCho: 2066829
- ianlewisuk1: 2072737
- Jakub Stasiak [:jstasiak]: 1719394
- Lavindeep: 2069768
- Ole Baumann [:darkintaqt]: 2070873
- Rehan: 1688932
- Ruslan Semchenko: 105707, 2041999, 2071549
- Sho Sakuma: 2072520
- Thomas Nibler [:tnibler]: 2071644, 2072008, 2072750
- Vir Patel: 1865119, 2073619
- Yeet: 1973441