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

This thread was archived. Please ask a new question if you need help.

I cannot activate or uninstall some add ons such as Stumble On and Morning Coffee

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

Gorgonz112
Gorgonz112
more options

After one of the upgrades of FireFox the Stumbleon and Morning Coffee addons stopped working. In the tools section it says that they are not compatible but in the Firefox addon site it says they are.

After one of the upgrades of FireFox the Stumbleon and Morning Coffee addons stopped working. In the tools section it says that they are not compatible but in the Firefox addon site it says they are.

All Replies (1)

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

You can delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini, extensions.sqlite) and compatibility.ini in the Firefox profile folder to reset the extensions registry. New files will be created when required.

See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.