Mozilla Firefox 109.0.1

Une nouvelle mouture du navigateur Firefox est arrivée. Pour cette version 109, c'est la sécurité de l'utilisateur qui est mise en avant.

En effet, du changement concernant les extensions, le très redouté Manifest v3 est désormais activé par défaut, les extensions déjà compatible avec cette API auront le droit de trôner dans un nouveau bouton "Extensions" disponible dans la barre d'outils du navigateur. Naturellement, les anciennes extensions MV2 seront toujours actif.
De même, une nouvelle protection contre certaines failles de sécurité par code arbitraire a été activée dans le processus de lecture des médias.

Voici la liste complète des modifications par rapport à la version précédente :

Nouveautés de Firefox 109.0.1 (31/01/2023)


  • Reverted changes to Windows font smoothing which caused poor rendering on some configurations (bug 1803154)
  • Fixed jank when loading pages containing a large number of emoji characters (bug 1809081)
  • Fixed an issue causing authentication prompts to not appear when loading pages in some enterprise environments (bug 1809151)
  • Fixed inconsistent sizing of event listener checkboxes inside the Inspector developer tool (bug 1811760)

Consulter les notes de version de Mozilla Firefox 109.0.1

Nouveautés de Firefox 109.0 (17/01/2023)


  • Manifest Version 3 (MV3) extension support is now enabled by default (MV2 remains enabled/supported). This major update also ushers an exciting user interface change in the form of the new extensions button.
  • The Arbitrary Code Guard exploit protection has been enabled in the media playback utility processes, improving security for Windows users.
  • The native HTML date picker for date and datetime inputs can now be used with a keyboard alone, improving its accessibility for screen reader users. Users with limited mobility can also now use common keyboard shortcuts to navigate the calendar grid and month selection spinners.
  • Firefox builds in the Spanish from Spain (es-ES) and Spanish from Argentina (es-AR) locales now come with a built-in dictionary for the Firefox spellchecker.



  • Effective on January 16, Colorways will no longer be in Firefox. Users will still be able to access saved and active Colorways from the Add-ons and themes menu option.
  • On macOS, Ctrl or Cmd + trackpad or mouse wheel now scrolls the page instead of zooming. This avoids accidental zooming and matches the behavior of other web browsers on macOS.
  • The Recently Closed section of Firefox View now equips users with the ability to manually close/remove url links from the list.
  • The empty state messages and graphic components surfaced in Firefox View for the Tab Pickup and Recently Closed sections have been updated for an improved user experience.



  • Developer Information
  • The ability to automatically break when code on the page hits an events handler has been available since Firefox 69. Firefox 109 now adds new support for the scrollend event. To use this new event breakpoint, open the JS debugger and find and expand the Event Listener Breakpoints section in the right hand column (learn more).
    Screenshot of Breakpoint options showing new scrollend event availability

Web Platform

  • The scrollend event is now enabled by default. The event is fired when a scroll has completed.
  • Firefox now permanently partitions Storage in third-party contexts independent of Storage Access to align with other browsers and provide better Web compatibility.

Community Contributions

Consulter les notes de version de Mozilla Firefox 109.0

Mozilla Firefox
Version : 109.0.1
Télécharger pour Windows, macOS ou Linux

5 1 vote
Note de l'article
Me notifier des

Ce site utilise Akismet pour réduire les indésirables. En savoir plus sur comment les données de vos commentaires sont utilisées.

0 Commentaires
Inline Feedbacks
Voir tous les commentaires