Make old extensions work with new FireFox

Here's some simple instructions to get most FireFox 1.0 extensions to work in 1.5 (although some truly need upgrades). I got this from the following blog post: "Make Old Extensions Work in Firefox 1.5":

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Note: if, after doing this, an extension says that you have to have version 1.0.7 or 1.5 of FireFox to install the extension, simply change the string value from 1.0 to 1.5.

1. At location bar, enter: about:config This will show you a list of Firefox internal preferences.

2. firefox new string Right click on the list, select New > String

3. At preference name enter "app.extensions.version" (without quotes).

4. Then, enter "1.0" (without quotes) as the value for app.extensions.version

5. Restart Firefox 1.5, then enable those disabled Firefox extensions.

6. Restart Firefox 1.5 again to active the extensions. Done.

Note: this doesn't work for all extensions... although some can be forced to work (look at comments to the post I link to above).