Firefox 105, 102.3 esr released

Mozilla[German]The Mozilla developers have released the versions 105.0.0 and 102.3 ESR of the Firefox browser on September 20, 2022. The ESR versions are maintenance updates that are supposed to fix bugs. Firefox 105 is a new development branch. In both updates vulnerabilities are eliminated.


Firefox 105

Der Firefox 105 is a new development branch. According to the release notes, the update brings the following new features.

  • Added an option to print only the current page from the print preview dialog.
  • Firefox now supports partitioned service workers in third-party contexts. You can register service workers in a third-party iframe and it will be partitioned under the top-level domain.
  • Swipe to navigate (swipe two fingers left or right on a touchpad to navigate back or forward through history) is now enabled on Windows.
  • Firefox is now compliant with the User Timing L3 specification, which adds additional optional arguments to the performance.mark and performance.measure methods to provide custom start and end times, durations, and attached details.
  • Searching large lists for individual items is now 2x faster. This performance improvement replaces array.includes and array.indexOf with an optimized SIMD version.

The new version of Firefox brings the following bug fixes and fixes:

  • Stability on Windows has been significantly improved as Firefox can now better handle low memory situations.
  • Touchpad scrolling on macOS has been made more accessible by reducing unintended diagonal scrolling against the intended scroll axis.
  • Firefox is less likely to run out of memory on Linux and works more efficiently for the rest of the system when running low on memory.

Furthermore, the developers claim to have closed various vulnerabilities. Some vulnerabilities are rated as high. Numerous bug fixes and new policies have been implemented in the latest enterprise version of Firefox. However, the link to further notes in Firefox 105 for enterprise is dead.

Firefox 102.3 ESR

The versions 102.3 with long-term support (ESR) was also released and should also close vulnerabilities.

Firefox should update itself automatically, but can be downloaded from this website for various platforms (the variant is to be selected via the displayed list boxes).


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