Rated 5 out of 5 stars

Great add-on. Have been using it daily for many years in Firefox and Thunderbird, it's become quite irreplaceable. But today something happened while typing Cyrillic in Facebook. Never seen it before. While I press F2 and type Cyrillic text, some Latin words are added to my text. Something is off. Not sure if it's Facebook or something else.

PS. I checked again. When I type Cyrillic in my status, everything works fine as usual. When I type in Comments, then there's where the problem is. It just keeps adding stuff to my text.

This review is for a previous version of the add-on (0.9.0.1-signed.1-signed). 

Nothing has changed in the last few weeks. Maybe facebook added a keymapper of their own. I'll take a look