Rated 5 out of 5 stars

per SoCu el oct. 14, 2017 ·

Not compatible with vesion 57 :(
Do you have in your plans to make it to work with FF 57?

This review is for a previous version of the add-on (0.5.5). 

per ChoGGi (desenvolupador) a oct. 14, 2017 ·

Last time I checked styling menuitems/buttons wasn't allowed with WebExtensions :(