Due to my installing firewall before it was available for my system, I now have a module on my system which is in a bit of a mess, and which won't update (I can post the error if it matters, but I assume that this is entirely down to the mess I got the module into by installing it too early, so not really worth worrying about). However, the interesting thing is that I cannot remove the module from the web interface:
Image may be NSFW.
Clik here to view.
In fact, it would seem that some combination of an upgrade being available and/or a module being disabled blocks the uninstall or remove options - which is a shame, because that may be precisely when you wish to remove a module!
Obviously, this isn't a critical issue, and it may be desired behaviour for some reason I haven't realised, but if not can I suggest that this limitation is removed?