Rated 4 out of 5 stars

This is simple and great, and thank you for keeping it alive. Small caveats: if you are using Linux you will need to go into the about:config entry for autocorrect.wordsfile and change the path to the actual file (which will be in the Thunderbird profile, extensions/[email protected]/autoCorrect.txt. For me adding or removing doesn't work from the preferences, so you may need to edit this file. It seems to slow Thunderbird down to have so many autocorrects, so just keep the mistakes you regularly make and delete the others.