SeaMonkey had an option to put the download window in a tab way way back when. It was really nice.Re: lovelyjubbly's comment, yes, but just as long as it doesn't take as many clicks to get to as the cert viewer (that's another topic, but seriously,...
Tree-style tabs, Sidebery and others do a good job, but I suspect a good base implementation with plenty of flexibility could give them a nice base to build off of and do even greater things.
