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!

ابحث في الدعم

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

How do I get my addons back?

  • 3 ردود
  • 40 have this problem
  • 7 views
  • آخر ردّ كتبه the-edmeister

more options

I restarted Firefox in Safe mode to troubleshoot what I thought was a problem (turned out it was just a new way of doing things in Firefox 4), and when I exited Safe mode, and started Firefox most of my addons where missing. My customized toolbar buttons are gone, and so is my Download Helper addon. How do I get things back to normal? Thanks.

I restarted Firefox in Safe mode to troubleshoot what I thought was a problem (turned out it was just a new way of doing things in Firefox 4), and when I exited Safe mode, and started Firefox most of my addons where missing. My customized toolbar buttons are gone, and so is my Download Helper addon. How do I get things back to normal? Thanks.

All Replies (3)

more options
  1. Open your Firefox profile folder, for details of how to access it see https://support.mozilla.com/kb/Profiles
  2. Close Firefox
  3. Delete extensions.cache, extensions.ini, extensions.rdf and extensions.sqlite, when you restart Firefox this will force Firefox to rebuild the list of installed add-ons
more options

Thanks TonyE, I'll try that.

more options

You probably won't find extensions.cache and extensions.rdf if that Profile has only been run with 4.0. Those files were used in Firefox 3.0 - 3.6 versions, 4.0 replaced those files with extensions.sqlite.