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Update

New Features and Bug Fixes

FirefoxFirefox
Mozilla
Update from patrick-devicebaseUpdate from:
patrick-devicebase (expert)

Version 129.0, first offered to Release channel users on August 6, 2024

New Features

  • Reader View now has an enhanced Text and Layout menu with new options for character spacing, word spacing, and text alignment. These changes offer a more accessible reading experience.
  • Reader View now has a Theme menu with additional Contrast and Gray options. You can also select custom colors for text, background, and links from the Custom tab.
  • A tab preview is now displayed when hovering the mouse over background tabs, making it easier to locate the desired tab without needing to switch tabs.
  • HTTPS is replacing HTTP as the default protocol in the address bar on non-local sites. If a site is not available via HTTPS, Firefox will fall back to HTTP.
  • HTTPS DNS records can now be resolved with the operating system's DNS resolver on specific platforms (Windows 11, Linux, Android 10+). Previously this required DNS over HTTPS to be enabled. This capability allows the use of HTTP/3 without needing to use the Alt-Svc header, upgrades requests to HTTPS when the DNS record is present, and enables wider use of ECH.
  • Added support for multiple languages in the same document spoken in macOS VoiceOver.
  • Address Autofill is now enabled for users in France and Germany.

Bug Fixes
Security Vulnerabilities fixed in Firefox 129

- CVE-2024-7518: Fullscreen notification dialog can be obscured by document
- CVE-2024-7519: Out of bounds memory access in graphics shared memory
- #CVE-2024-7520: Type confusion in WebAssembly
- #CVE-2024-7521: Incomplete WebAssembly exception handing
- #CVE-2024-7522: Out of bounds read in editor component
- #CVE-2024-7523: Document content could partially obscure security
- #CVE-2024-7524: CSP strict-dynamic bypass using web-compatibility shims
- #CVE-2024-7525: Missing permission check when creating a StreamFilter
- #CVE-2024-7526: Uninitialized memory used by WebGL
- #CVE-2024-7527: Use-after-free in JavaScript garbage collection
- #CVE-2024-7528: Use-after-free in IndexedDB
- #CVE-2024-7529: Document content could partially obscure security
- #CVE-2024-7530: Use-after-free in JavaScript code coverage collection
- #CVE-2024-7531: PK11_Encrypt using CKM_CHACHA20 can reveal plaintext on Intel Sandy Bridge machines

More updatesTo the product
Receive Important Update Messages Stay tuned for upcoming Mozilla Firefox updates

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