Yesterday, I installed Firefox 3 RC3 and was amazed to see how fast and better my favourite browser has become. I actually use lots of addons with my Firefox 2, and I found that most of them were disabled after upgrading. That’s because they still haven’t been updated yet by their developers and Firefox 3 doesn’t even try to run addons that are not compatible. FEBE is one of the plugins that are not (see update below) compatible with Firefox 3 RC3.

Then I started Googling, for something that would help me get over with this and in the end found an article on Lifehacker that solved my problem.

Note: Only do this if you’re willing to deal with possible extension bugs and security risks!

How To Force Enable Incompatible Extensions In Firefox 3

• Type about:config into Firefox’s address bar and click the “I’ll be careful, I promise!” button.
• Right-click anywhere. Choose New>Boolean. Make the name of your new config value extensions.checkCompatibility and set it to false.
• Make another new boolean pair called extensions.checkUpdateSecurity and set the value to false.
• Restart Firefox.

All the addons that were disabled due to incompatibity will now be enabled and working. Remember, some extensions might cause problems as they are not updated for the latest Firefox by the developers themselves.

UPDATE (June 15th, 2008): FEBE 6.0 Beta is available for download for Firefox 3.0 RC3. You can download it from here. Thanks for the update Chuck Baker.