We know how Mozilla must feel. It spends every waking hour tweaking and perfecting Firefox to eke out as much performance as possible, only to see it all ruined by lousy add-ons that weigh the browser down like a block of cement. It's apparently now had enough, however, and has gone as far as to publish a list that exposes the worst offenders. As of this writing, the two biggest drags on the browser by far are the FoxLingo translator / dictionary and Firebug developer tool add-on which, accordin[...]

via Mozilla shames developers with list of slow performing Firefox add-ons