Greasemonkey is a truly impressive addition to Firefox and will be IS a nice addition to Opera 8. In simple terms, it allows you to write custom JavaScripts to run on any sites you like (or even all sites). There is a fairly healthy group of scripts already available, and many more surely on the way.
- Auto-Save Forms
This script saves all text in forms to a cookie for you as you type. If you any reason you lose the data in the form (eg your PC crashes, your session expires, etc), you can click the "Repopulate Form" button and your text will be restored.
AddedBytes.com is the online playground of 
Any help would be tremendously appreciated.
Thanks,
mark
doidom@yahoo.com