Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Learn More

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Reinstalled Firefox and none of the add-ons are working

  • 2 antwurd
  • 3 hawwe dit probleem
  • 1 werjefte
  • Lêste antwurd fan Sharo124

Sharo124
Sharo124
more options

Hello, I was having problems with Firefox so I completely uninstalled it and then reinstalled. Everything seemed to be going fine, but after I reinstalled the add-ons i.e. Adblocker Plus, WOT, Stylish, etc. none of them worked at all. I checked the add-ons section and they are registering as enabled, but apparently none of them took effect - even after I restarted the computer and Firefox.

Any help is much appreciated.

Hello, I was having problems with Firefox so I completely uninstalled it and then reinstalled. Everything seemed to be going fine, but after I reinstalled the add-ons i.e. Adblocker Plus, WOT, Stylish, etc. none of them worked at all. I checked the add-ons section and they are registering as enabled, but apparently none of them took effect - even after I restarted the computer and Firefox. Any help is much appreciated.

Keazen oplossing

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled or not compatible extensions in "Firefox/Tools > Add-ons > Extensions" then click the Tools button at the left end of the Search Bar to check if there is a compatibility update available.

If this hasn't helped then also delete the addons.json and addons.sqlite files.

You can check for problems with preferences.

Delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in the current Firefox release.

Dit antwurd yn kontekst lêze 👍 1

Alle antwurden (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Keazen oplossing

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled or not compatible extensions in "Firefox/Tools > Add-ons > Extensions" then click the Tools button at the left end of the Search Bar to check if there is a compatibility update available.

If this hasn't helped then also delete the addons.json and addons.sqlite files.

You can check for problems with preferences.

Delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in the current Firefox release.

Sharo124
Sharo124 Fraacheigener
more options

Thank you for your help. The only file I saw to delete was extensions.json (no .sqlite or .ini files), so I just deleted that one. Once I restarted Firefox, it prompted me to re-install all my add-ons, and everything is working fine now.