Do encourage the maintenance of this extension Rated 5 out of 5 stars
I participated in the discussion cited by thenonhacker, and disagree with the decision taken there. However, I view it as a Mozilla-level decision to break this functionality and not go to the bother of fixing it. If Mozilla were more responsive to the demands of its users, this would have been fixed before Fx 5.
As the dev directly responsible, Gottwald went above the call of duty by making this add-on. Anyway, rate the extension (which is obviously useful) not the developer.