No, no, not KeepVid, but KeepTube:
http://keep-tube.com/
I would use FF extension, but on public comp I use FF is not kinda working properly.
In the last desperate move, I will try FF portable (I have not use Fireshit (copyright by Disrupted) in ages) and one of this two:
http://keep-tube.com/firefox-extension.php
http://keep-tube.com/greasemonkey-plugin.php
Forum:
Extensions