These extensions that you can't uninstall are those that come bundled with the Suite. Neither can you uninstall the SeaMonkey default and Modern themes, even after installing and using a different theme. All this is part of the new addons manager, and I suspect that it is intentional. I'm confirming this bug for now because I can reproduce it, but its final disposition might quite well be INVALID (i.e. "this behaviour is intentional"). I'm using: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:2.0b2pre) Gecko/20100701 Lightning/1.1a1pre SeaMonkey/2.1a3pre - Build ID: 20100701101320
Strange that I've never had a problem uninstalling them from previous versions of SeaMonkey, as shown in this post: http://forums.mozillazine.org/viewtopic.php?p=9617639#p9617639 Personally I don't see how removing this ability to uninstall extensions is an improvement.
(In reply to comment #2) > Strange that I've never had a problem uninstalling them from previous versions > of SeaMonkey, as shown in this post: > http://forums.mozillazine.org/viewtopic.php?p=9617639#p9617639 > > Personally I don't see how removing this ability to uninstall extensions is an > improvement. That picture was taken with the old addons manager, which existed in SeaMonkey from Sm 2.0a1pre to Sm 2.1a1, and in Firefox and Thunderbird for as long as I can remember. The addon manager interface was totally rewritten starting at SeaMonkey 2.1a2pre and at the corresponding versions of Firefox and Thunderbird, and it is this new addons manager which (at the moment, at least) cannot uninstall addons packaged with the application.
Oops: i meant: all pictures except the rightmost one were taken, etc.
Yes, we do not want to support removing of global extensions via the add-ons manager. Most of the times users will not have the permissions to do that. You can still go to the application folder and remove those extensions via your file manager. Also in some situations users weren't aware that they remove extensions which will affect all other users on that system. Dave, can we mark it as invalid?
This won't be fixed, and I don't think we even supported that in previous versions, IIRC, the "Remove" button was disabled there.
Ahem: http://forums.mozillazine.org/viewtopic.php?p=9617639#p9617639 Look at the pictures.
Interesting. It still won't be fixed.