I am a roboform fan, but have recently installed lastpass. It is a tad quicker I think.
Have you tried iopus?
http://www.iopus.com/I used it ages ago, when I was filling lots of forms. You can plug in the list of urls, and get it to go from one to another, as you fill in the forms. Might be simplest in conjunction with roboform if you want to see every page. Not sure of the level of automation you are looking for?
Now for some guessed ideas... .brainstorming....
otherwise, google has its own form filler, that I would guess would be fastest on Chrome, and have you seeen this plug in:
https://addons.mozilla.org/en-US/firefox/addon/4775/Not tried it.
