If you've ever typed out a humungously long witty retort to some smart arse comment on Teakdoor then this add on's for you. Ive seen a few people post that theyve typed out some long reply then lost it because the connection dropped or closed the window by accident, this one fixes all that by saving stuff as you type so it can be retrieved if buffalo occurs. Just right click and theres a menu for recover form or recover text, no idea how many characters it supports as yet.
Handles form recovery and stuff like typing in wysiywig editors. One of those clever little extensions you'll wonder how you lived without.
https://addons.mozilla.org/en-US/firefox/addon/6984 Lazarus: Restore lost forms with a single click