Very useful on weaker machines Rated 4 out of 5 stars

I found this add-on very long time ago, because I wanted something to restrict flash from slowing my netbook. Working very well...
But I see one shortage - for me (FF8, Windows XP & W764bit) is not working the synchronization feature. Even on the Sync server allocation is saved nothing by Flashblock. So one star down, but still great add-on.

This review is for a previous version of the add-on (1.5.15.1).