Assegnate 5 su 5 stelle

Very useful, 5 stars!

One thing that I personally missing is highlighting related messages. Like requested here: http://superuser.com/questions/281942/how-to-make-thunderbird-highlight-related-messages-a-la-apple-mail

Btw, since google code site is closing I cannot be able to leave feature request there. Any plans to move the project to github, for example?