Firefox Tomorrow
Stable 143.0.3

Firefox 143.0.3

Tuesday, September 30, 2025 8 changes 2 categories
Fixed (7) Security (1)

TL;DR

7 fixes, 1 other change. Highlight: Adjusted the timing of the new drag-to-pin interaction cue for better reliability. ( Bug 1989344 )

Fixed 7 items
  1. 01

    Adjusted the timing of the new drag-to-pin interaction cue for better reliability. ( Bug 1989344 )

  2. 02

    Fixed an issue that prevented some extensions from updating via the Add-ons Manager. ( Bug 1984724 )

  3. 03

    Fixed a regression that prevented Firefox View sections from collapsing/expanding as expected. ( Bug 1989200 )

  4. 04

    Addressed a WebExtensions storage issue that could cause Firefox to crash on startup with certain extensions installed. ( Bug 1989840 )

  5. 05

    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 )

  6. 06

    Reduced long delays when loading certain websites while connected to networks that block UDP connections. ( Bug 1980812 )

  7. 07

    Reference link to 143.0.1 release notes .

Security 1 item
  1. 01

    Various stability and security fixes .