Doesn't work. "Added" it twice, just to confirm I had done it correctly. Although my browser indicates the add-on was successfully added, it's not listed with my other add-ons and there's no evidence of it working at all. I'd like to just uninstall or delete it (since it's not working and there's no evidence of it even being there), but I'm unable to do that since it doesn't show up! Unclear to me how it's got so many users listed (approx 30k as of right now). And the "support" sight is a bare-bones page with nothing helpful. Waste of time and suspicious.
This review is for a previous version of the add-on (52).