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Firefox 3.6 alpha and beta has been out for quite a while, but I’m sure most of you guys are sick of having to wait for the extension developers to patch up up your favorite extensions to work with Firefox. But here is a simple yet delicate way to fix this problem and make sure your extensions work properly with Firefox 3.6.

How to make Extension Compatible with Firefox 3.6+, 3.7+ and 3.8+

You probably have encountered this error each time you install a incompatible extension. Make sure you noted down the version string, this is very important.

Now type about:config in the address bar,  you should be greeted with a warning click yes, now right-click in the list and choose New –> Boolean from the menu.

Now we’ll be prompted to enter the preference name. This is where your version strings comes handy.

For our experiment we are using Firefox 3.6b4,  to check your version string click on Help then About Firefox your version string should be there.

If your Firefox is a alpha release then the preference should be written as  extensions.checkCompatibility.VERSION.a for Beta releases extensions.checkCompatibility.VERSION.b.  So if you were testing out Firefox 3.7 Alpha, you’d use extensions.checkCompatibility.3.7a as the preference name.

extensions.checkCompatibility.3.6b

Last but not the least, on the next dialog, just choose “false” and close the dialog.

Now try installing your extensions, they should be working in no time. If for some reason its not working again check your version string and go through the process. If everything fails you can always use Nightly Tester Tools addon to force install all your incompatible extensions.

Pranjal