X
Tap here to go to the mobile version of the site.

Support Forum

How do I get my addons back?

Posted

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.

Additional System Details

This happened

Every time Firefox opened

This started when...

I restarted Firefox after exiting Safe Mode

Installed Plug-ins

  • IE Tab 2 Plug-in for Mozilla/Firefox
  • npybrowserplus_2.4.21
  • Shockwave Flash 10.2 r152
  • Adobe Shockwave for Director Netscape plug-in, version 11.5.9.620
  • iTunes Detector Plug-in
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_24 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • 4.0.51204.0
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • getplusplusadobe16297
  • Google Update
  • Version 1.1.0, copyright 1996-2010 The VideoLAN Teamhttp://www.videolan.org/
  • Adobe PDF Plug-In For Firefox and Netscape 10.0.1
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0) Gecko/20100101 Firefox/4.0

More Information

I'm using Firefox 4, and my OS is Windows XP sp3.

TonyE
  • Moderator
1034 solutions 8840 answers
  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
# Open your Firefox profile folder, for details of how to access it see https://support.mozilla.com/kb/Profiles # Close Firefox # 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

Question owner

Thanks TonyE, I'll try that.

Thanks TonyE, I'll try that.
the-edmeister
  • Top 10 Contributor
  • Moderator
3931 solutions 29647 answers

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.

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.