There is no real bug requesting .xpi uninstall functionality yet. I would like to be able to uninstall Jabberzilla, Protozilla,... if I don't like them anymore. I'll start this as a tracker bug for providing .xpi uninstall functionality and mark the single bugs as dependent on this one. What do we need to do to get this: Uninstall UI, install information storage,... ?
*** This bug has been marked as a duplicate of 7884 ***
Verified as dupe of 7884