Firefox update problem

Tried to update Firefox and now it won't start and displays a very unhelpful error about XULRunner and versions that looks something like this?


XulRunner
Error: Platform version '1.9.2.3' is not compatible with
minVersion >= 1.9.2.4
maxVersion <= 1.9.2.4

1. Goto your installation directory for Firefox, probably something like C:\Program Files\Mozilla Firefox
2. Open the file "application.ini" file in something like notepad
3. Find the text MinVersion=1.9.2.4 and change the 4 to a 3 and save it.
4. Now Firefox will be able to run though it might complain about updates. Don't let it do an automatic update (it'll fail)
5. When you can, download and install the latest version of firefox from the Mozilla website

Cause:
From what i can tell, the Firefox.exe was the 1.9.2.3 version(as checked by right clicking and viewing version properties), but the application.ini (required for XULRunner) file specified it needed to be 1.9.2.4. Don't know why firefox.exe didn't update with the rest (maybe it was in use at the time?)

The latest version(3.6.6) is 1.9.2.6.