Easily Disable Firefox Add-On Compatibility Checking

March 17, 2010 | Filed under Firefox


There are many ways to continue using the Firefox add-ons that are marked as incompatible. Some involves hacking and editing the .xpi file, and one of it is by adding a new boolean in the Firefox about:config place. Well the easiest way is just to install a Firefox plugin called Add-on Compatibility Reporter which automatically adds the extensions.checkCompatibility Boolean to about:config. This extension will enable incompatible extensions for you to test whether they still work with the version of Firefox or Thunderbird that you’re using.

Normally Firefox users will only have extension incompatible problems after upgrading to the latest version of Firefox, hence the Add-on Compatibility Reporter plugin only supports Firefox 3.5 to 3.7a3pre. If you are using the older version of Firefox, you probably won’t even have plugin incompatible problems in the first place.

After installing this add-on, everything is the same except whenever you go to the Extensions tab in the Add-ons window, a warning will always appear saying “Add-on compatibility checking is disabled. You may have incompatible add-ons”. Even if you accidentally clicked the Enable button, not to worry because the next time you restart Firefox, the compatibility checking will be again turned off.

Disable Firefox Compatibility Checking

As you can see at the screenshot above, the extension StrongBad Emails says that it is not compatible with Firefox 3.6 but it is Enabled. If you see the button “Disable” it means the opposite and vice versa.

Download Add-on Compatibility Reporter

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