Finally ready to go for Firefox 4.0 Puntuado con 5 de 5 estrellas
In response to previous reviews, I found the developer very polite and responsive to feedback as much as possible (some people can't be satisfied and think that its their project). Also it seems the new version 1.3.6 has solved memory issues with Firefox 4.0. Version 1.3.6 has been already submitted to the Mozilla addon site and is awaiting review and approval, but the Mozilla addon review seem to be backlogged. The new addon review policy is here ( https://addons.mozilla.org/en-US/developers/docs/policies/reviews )
You can still download version 1.3.6 by clicking on "view all versions" at the bottom of this webpage (or mozilla adblock plus addon page) to view/download of any addons including their updates awaiting official mozilla review.