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[SITUATION] · [QUIET] · [TECHNOLOGY]

9 clusters · 45 sources · 43 days · First seen · Last updated

Mozilla Firefox and Thunderbird software updates

Overview

On September 29, 2026, Mozilla released Firefox 157, implementing the ‘Project Nova’ visual redesign. This overhaul introduces rounded tabs, menus, and address bars, utilizing pastel gradients and a cohesive icon set. The update brings back a ‘compact mode’ to maximize screen real estate and improves multi-tab workflows through more intuitive tab grouping. Performance improvements include hardware AV1 decoding support for WebRTC video calls to reduce CPU load, alongside fixes for 8-bit HDR video color inaccuracies and audio-video synchronization errors. This version also introduces native support for JPEG XL and improved HDR content rendering. The redesign aims to create a consistent visual language across both desktop and mobile platforms and includes a master toggle to disable generative AI tools. Following the release, it was noted that the update also addresses 38 high-risk security vulnerabilities, including sandbox escapes. Additionally, Mozilla released updates for its Thunderbird email client, including versions 157.0, 153.4.0 ESR, and 140.17.0 ESR. The 140.17.0 ESR release is the final version in its series and includes security fixes and the ability to display remote content in OpenPGP messages encrypted with integrity protection. Subsequent updates expanded the ecosystem, including Firefox 158.0, which introduced a ‘Smart Window’ for faster form filling, improved PDF accessibility on Linux and macOS, and expanded translation support for Albanian, Belarusian, and Filipino. Firefox Developer Edition 159.0 added native macOS sharing integration and enhanced Web Console capabilities. Additionally, the Firefox-based browser Waterfox 6.7.6 released version 6.7.6, incorporating security patches from the Mozilla Foundation and new RSS feed management options. In October 2026, Firefox 159 was released, marking a transition to a two-week major version update cycle. This release patched 167 vulnerabilities, including 108 high-risk flaws, and addressed memory leaks in web applications like Zoom.

Entities

Mozilla · Firefox · Project Nova · Waterfox · Windows ARM

Timeline

  1. [TECHNOLOGY] 2 sources
    Mozilla and browser developers release new Firefox and Waterfox updates

    Mozilla and other developers have released updates for Firefox 158.0, Waterfox 6.7.6, and Firefox Developer Edition 159.0, introducing new features like smart form filling, improved RSS management, and enhanced

  2. [TECHNOLOGY] 3 sources
    Mozilla releases major Firefox redesign and Thunderbird updates

    Mozilla has released Firefox 157, featuring a major visual redesign and 38 security fixes, alongside multiple updates for the Thunderbird email client.

  3. [TECHNOLOGY] 25 sources
    Mozilla launches Firefox 157 with Project Nova redesign

    Mozilla has released Firefox 157, featuring the Project Nova redesign with rounded interfaces, the return of Compact Mode, and enhanced customization options for desktop and mobile users.

  4. [TECHNOLOGY] 4 sources
    Mozilla releases Firefox 157 with Project Nova visual redesign

    Mozilla has launched Firefox 157, introducing the ‘Project Nova’ visual refresh with rounder interface elements, a returning compact mode, and hardware AV1 decoding for more efficient video calls.

  5. [TECHNOLOGY] 2 sources
    Mozilla updates Firefox with stability fixes and Project Nova redesign

    Mozilla is updating Firefox with version 156.0.1 to fix stability and CSS errors, followed by the mandatory ‘Project Nova’ visual redesign in version 157.

  6. [TECHNOLOGY] 4 sources
    Mozilla releases Firefox 156 with new VPN and performance updates

    Mozilla has launched Firefox 156, featuring a free 50 GB monthly VPN for Android, a 45% faster PDF viewer, and improved image processing. Sponsored address bar suggestions are also being introduced.

  7. [TECHNOLOGY] 10 sources
    Mozilla Firefox 156 released with performance and feature updates

    Mozilla released Firefox 156, featuring a 45% faster PDF viewer, improved JPEG memory efficiency, and new sponsored address bar suggestions in select European markets.

  8. [TECHNOLOGY] 2 sources
    Mozilla releases Firefox 155.0.1 maintenance update

    Mozilla has released Firefox 155.0.1, fixing browser freezes related to CSS filters, sidebar visibility issues, and profile icon display errors.

  9. [TECHNOLOGY] 6 sources
    Mozilla releases Firefox 155 with networking and privacy updates

    Mozilla released Firefox 155, featuring Happy Eyeballs v3 for faster connections, visible tracker blocking counts in the address bar, and improved container management and cross-platform bug fixes.

Sources

ad-hoc-news.de · bhmag.fr · blog-nouvelles-technologies.fr · borncity.com · camp-firefox.de · canaltech.com.br · clubic.com · cyberinsider.com · deskmodder.de · developpez.net · fonearena.com · frandroid.com · gamemag.it · gamestar.de · giga.de · gigazine.net · ginjfo.com · hothardware.com · ilsoftware.it · innovation-village.com · instalki.pl · ipaddisti.it · it-boltwise.de · it-connect.fr · it-daily.net · it.slashdot.org · ithome.com · itmagazine.ch · kaminata.net · kulturegeek.fr · linuxiac.com · luxsure.fr · mobiili.fi · nerdsheaven.de · netcost-security.fr · omgubuntu.co.uk · pcgameshardware.de · phonandroid.com · sector.sk · soeren-hentzschel.at · stadt-bremerhaven.de · tbreak.com · tecnoandroid.it · tecnologia.com.pt · ubuntuhandbook.org

This summary has been updated 13 times: see revision history