Rated 5 out of 5 stars
Abduction is no longer working since Firefox was upgraded to version 18. It's a shame recent user reviews are giving 1 star; this addon worked wonderfully before FF's update The creator just needs a little time to catch up.
That having been said, my only wish for upcoming versions is to increase the file size and/or dimension limit. I often cannot capture long pages because of that restriction. Chrome has at least one screenshot addon that doesn't have this limit; none for FF so far. (Can we catch up?) :)