As it stands right now, if you accidentally hit delete for an addon, you better quickly hit that undo button, or else your addon is gone.
Please add a "confirm deletion of AddonX" when users delete addons. It would be very beneficial and prevent bad user experiences of accidental deletion
Better that when selecting to remove an addon it goes into a seperate window which you can see all of them and then hit "confirm remove" and removes all those addons