Great Rated 5 out of 5 stars
Thank you very much for this Addon. It works very good. I used "Autosavetext" by Netticat before, which isn't in developing furthermore. So I'm happy to find this one here.
@Paul Leger :
The data is stored in the Firefox-preferences. Take a look at the "about:config" an type in the name "extensions.tacache.cache".