My modules act as they are installed but not displayed. It didn't happen until after that I installed FF4, struggled with her and had to return to FF3.5.5. All of a sudden my modules do not work. How can I fix?

I installed FF4 on my laptop and PC, but I kept getting kicked offline, especially from Facebook. I then uninstalled FF4 and returned to FF3.5.5 (on the PC) and FF 3.6 on the laptop. This solved my problem of connectivity, but the modules are now in place. No add-on to all appear on the PC, and only Personas show on the laptop. When I try to install forecast Fox and colored tabs, I get the message 'install now' and the message to restart FF, I do. When it will redraw, add-ons are simply not there. I hope that it is something I am doing wrong, but I don't know what it is. Java is updated. Pointers? TIA!

This may be caused if one of the files which stores details of extensions you installed is corrupt.

  1. Open your profile folder, for details of how to find it, see https://support.mozilla.com/kb/Profiles
  2. Closing of Firefox
  3. Delete the following files if they exist, extensions.cache, extensions.rdf, extensions.ini and extensions.sqlite
  4. Restart Firefox, it will then rebuild the list of installed extensions

Tags: Firefox

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