Rated 1 out of 5 stars
"By default, the definitions are specified by a file hosted on this site. Click the "Update Regex/URL Preferences" button to update to the latest definitions." OK great but does not populate the data when add-on is installed for the first time... Does not support right-click in Gmail. Not a very user friendly add-on.This review is for a previous version of the add-on (3.1.1-signed.1-signed).
I would love to help solve some of these issues, but have no contact info. In particular, I cannot reproduce your Gmail problem. Adding a way to autoupdate definitions is something I'm considering.