Love this app! It toggles easily, works great. Rated 5 out of 5 stars

It also gives me a sick thrill to know I've read a message on FB without the sender seeing I have. >:)

This review is for a previous version of the add-on (0.1.4). 

Good Job ! Rated 5 out of 5 stars

Working Perfectly.

This review is for a previous version of the add-on (0.1.4). 

Facebook blocker Rated 5 out of 5 stars

It's very good!

This review is for a previous version of the add-on (0.1.4). 

Excelente Rated 5 out of 5 stars

Cumpre o que promete!

This review is for a previous version of the add-on (0.1.4). 

Rated 2 out of 5 stars

the toolbar icon vanished and there's no way to get it back

This review is for a previous version of the add-on (0.1.3.1-signed.1-signed). 

Rated 5 out of 5 stars

Does exactly what it claims. Keep it up.

This review is for a previous version of the add-on (0.1.0.1-signed.1-signed).