Rated 5 out of 5 stars

by gaybareback on July 20, 2008 ·

http://dotnetwizard.net/?p=757
Make any addin work with FF3+

1. Open Firefox 3 and type in the addressbar “about:config” and you will see the below screenshot. Click the button “I’ll be careful, I promise” to proceed.

ff3b4

2. Now you will see the Firefox config page. Right-Click on a blank area of the page and select “New” in the menu and select the data type as “Boolean” (Boolean is a “true” or “false” type statement for those that don’t know), type the preference name as “extensions.checkCompatibility” and click ok.

3. Another screen will popup with a select option of “True” or “False”, Select “False” in this screen. If you didn’t get this, then you have done the above step wrong. Check the “Further Note” below to rectify your mistake.

ff3b43

4. That’s all restart your browser, and all your Firefox 3 Beta x extensions should work now.

5. After you have re-started the browser, if you goto Tools -> Addons you will see something similar to the below screen with a yellow bar.

ff3b42

DO NOT CLICK ON THE ENABLE BUTTON, or else you have to start this all over again.

6. Follow these steps for every Beta release of Firefox 3

Further Note: If you entered the wrong type (like String instead of Boolean) or perhaps misspelled the statement, your new entry will most likely be removed from “about.config” when the browser is restarted giving you another chance to try again.

Removing your entry: If you ever wish to turn compatibility checking back on then just go into “about:config”, type “extensions.checkCompatibility” into the search bar at the top of the list (the search result is automatically displayed) and when your entry comes up, right click on the entry and select “Toggle” from the context menu. The Boolean value should now read “True”. Restart the browser. If you want to remove the entry altogether then perform the search as stated above, right click on your entry when it comes up and select “Reset” and then restart the browser. Your entry will be gone now.