Rated 5 out of 5 stars

Works very nice. Well implemented.
Only 1 thing: I do not see the logic, why the entry in context-menu appears between "delete" and "paste". OK, maybe because it pastes the e-mail into the field...
Below "delete" would look nicer.. Well, I now made the change myself in browser.xul :)

This review is for a previous version of the add-on (0.4.3).  This user has a previous review of this add-on.

> maybe because it pastes the e-mail into the field...

That was indeed the logic behind its positioning. Nevertheless, I agree and will reposition it in the next version.