Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Denc nañu waxtaan wii. Yónneel yeneen laaj soo soxlaa ndimbal.

All FireFox addons disappeared. Any addon I install disappears immediately.

  • 1 tontu
  • 43 am na jafe-jafe bii
  • 5 views
  • i mujjee tontu mooy cor-el

CDrrom
CDrrom
more options

Today I opened Firefox to find that every single addon I had installed was gone. The extensions page was empty. The files were still where they should be on my PC, but Firefox wasn't bringing up anything. I removed them all and attempted reinstalling each addon one-by-one, but as soon as I close Firefox they all disappear again.

I've tried reinstalling Firefox multiple times. I've restarted my PC multiple times. I'm at a complete loss here. Just an hour ago everything was working fine. I have no added or removed anything on my PC that may have caused this.

Today I opened Firefox to find that every single addon I had installed was gone. The extensions page was empty. The files were still where they should be on my PC, but Firefox wasn't bringing up anything. I removed them all and attempted reinstalling each addon one-by-one, but as soon as I close Firefox they all disappear again. I've tried reinstalling Firefox multiple times. I've restarted my PC multiple times. I'm at a complete loss here. Just an hour ago everything was working fine. I have no added or removed anything on my PC that may have caused this.

All Replies (1)

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

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

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) 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, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to check if there is a compatibility update available.

If this hasn't helped then also try to delete the addons.sqlite file.