OK + Feature suggest. Rated 5 out of 5 stars

Good. It works. (i love the icon btw)

Suggestion:
An option to take off the status-bar icon. I have toolbars cluttered of icons and i arrange them by some similar action or category. The problem with the status-bar is that i can't move or eliminate the icon. I have some "developer" toolbar icon agrouped in the addon-bar and your icon is in a place that a can't move it aside my other toolbar icons. With your toolbar icon is enough for me, i can move it alongside my other developer tools, but what is the sense of have a toolbar icon repeated twice in a toolbar (addon-bar + status-bar)?

Please, consider that.

This review is for a previous version of the add-on (1.0). 

New Version was uploaded

A new version that is more compatibly wtih Firefox 31+ has been submitted for review. It should be available soon and fix the issues with statusbar icons. Regards. -Mark