Easy Migration from 0.9 RC to 0.9 Final

I think many people are now upgrading from Firefox 0.9 RC (having some 0.9-compatible extensions installed) to 0.9 Final as it is just out today. However, if you didn't remove your old 0.9 RC profile, you might run into the problem of starting up Firefox 0.9.

If you startup Fx, it will load for a while, but no window appears then. You can find "firefox.exe" running by viewing the Task Manager. Of course you should kill the process now.

This weird problem is caused by some of the 0.9-compatible extensions you installed (e.g. Launchy).

To upgrade to Fx 0.9 without removing your old 0.9 RC profile with lots of settings, it is as easy as 1-2-3:

1. Uninstall Fx 0.9 RC and install Fx 0.9 Final.
2. Start Fx under "save mode" using the Start Menu.
3. Uninstall the extension(s) that cause the problem.

Now the problem should be solved. Restart Fx under normal mode and re-install your favorite extensions again!