Rated 5 out of 5 stars

Really usefull! That's the only extension that I found that allow posting to Facebook and Twitter at the same time! :) All the others that I tested just allow to post to one at a time.
But I made some css hacks, because when I click to share on Facebook the content height expands, but the window has no scrollbars. =/

This review is for a previous version of the add-on (1.0.1-signed.1-signed). 

Interesting work-around

We'll look into that oddness. Could you post a screenshot so we know what you are looking at?