Excellent ! Rated 5 out of 5 stars
EDIT : After reporting a little bug, a few hours after, the bug is fixed. This is really impressive, great developer inside :)
Probably the best screenshot extension in firefox !
OLD TEXT : it seems it's not working anymore in Firefox 17.0.1 on OSX Snow Leopard : the download file is blocking : if you cancel and restart the download, it works...
Sorry about that, it was something that totally slipped my mind, it's fixed now. Thank you for reporting the issue. :)