So the love of my Firefox Addon life has been glitched as hell lately. Lazarus has risen from the grave more zombie than man, giving stopscript errors and not actually recovering anything since the 3.6 update. I weep for all the potential eaten tags!
Not to fear, however: A new contender has entered the field! Meet TextArea Cache! This little guy is lacking in the search that Lazarus had, but is great for recovering whatever you had typed should disaster strike. It's easy to use and doesn't give you errors every time you open Firefox. Hurray!