Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Ce sujet de discussion a été fermé et archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

How do I report a (possible) fault to Firefox / Mozilla?

  • 5 réponses
  • 0 a ce problème
  • 59 vues
  • Dernière réponse par cor-el

As per the title.

As per the title.

Toutes les réponses (5)

Hi Ian

We might be able to help you here, but also you can also file a bug report or feature request. See File a bug report or feature request for Mozilla products for details.

What possible fault or issue are you experiencing and want report?

Raised as a possible bug with Mozilla

Everytime I load Firefox the bookmarks sidebar is not shown.

Navigating thus View => Sidebar => Bookmarks I can bring it up. It will stay visible for the whole of my browser session. However, after I've closed this session and started another. the bookmark sidebar is missing again.

FF 128.0.3 OS Windows 11 Pro v 24H2 Build(26100.1297) & all previous versions of 24H2

EDIT sorry, this has already been answered in the previous posts.

Ian, the correct place to report a bug is at Bugzilla: https://bugzilla.mozilla.org/home

It is best to read the "Bugzilla Etiquette" and "Tips for filing a bug" pages first (the links are on the page).

If you want to check if the issue is a genuine bug, you could ask here first.

You can also try searching on the bugzilla site to see if it is an already-known bug. Any possible similar issues might also be shown when filling out the bug report form.

Modifié le par TechHorse

I will lock this thread as it appears to be a duplicate. Please continue in your earlier thread.