Rated 5 out of 5 stars

yes it is a must-have for kde-users and i do not understand why instead useless crap like "personas" such things are not included in the core instead destroy them permanently with the new rapid release

the same here: http://users.skynet.be/mgueury/mozilla/

as linux-users you are fucked with the new release schedules because now there are no security-fixes for 7.x and i CAN NOT upgrade to 8.x until my extensions are working

mozilla lost to understand what users are needing and is on the way to destroy the biggest strength of their software called EXTENSIONS permanently

This review is for a previous version of the add-on (0.12).  This user has other reviews of this add-on.