Comment #81 on issue 975 by stephen.ewen: FF 3.0.15 said to be incompatible with Gears 0.5.33.0
http://code.google.com/p/gears/issues/detail?id=975
@ Comment 80:Exit Firefox, go into the profile folder, delete extensions.cache, extensions.ini, and extensions.rdf and restart Firefox. It should re-detect all installed extensions and rebuild their paths.
