Sometimes when I am posting to certain websites, I accidentally click refresh or navigate away from the page before I am finished typing. There are other scenarios as well, like a crash, or even an unvoluntary refresh when adding attachments on sites like Neowin...

Problem is, all the text I had typed disappears, and I have to do it all over...

Now, what I wish for is an Add-on or similar that remembers the text I had typed in the text box, so that when I navigate back to the page, the text reappears, and I can continue typing.

Anything like this available?

i don't use either one, but i found these in a quick search of add-ons:
Save Text Area 0.4.6 - https://addons.mozilla.org/en-US/firefox/addon/1046
AutoSaveText 1.33 - https://addons.mozilla.org/en-US/firefox/addon/6419

I've been using Textarea Cache for some months now.