Found the Icon, No Problem Rated 4 out of 5 stars

I didn't experience the missing icon problem.

If anybody else has trouble finding the icon, it's probably "hiding" in the "other, non-default icons" section of the browser. To find those icons, see the article about customizing Firefox's toolbars:

I'm guessing the comment below was around the time when the "add-on bar" was removed from Mozilla Firefox:

You can put it in your main bar, or install it from

Closing notes: using Firefox 30.0 (current).