Rated 4 out of 5 stars

I have the same comment and problem as the previous reviewer, Knight Yoshi. In my case the problem is caused by a conflict with the "Memory Fox" add on. If I disable Memory Fox, MinTrayR works correctly on FF 17.0.1.

I think it would be more convenient for users if FF/TB could be opened from the Tray with a single, instead of double, click of the left mouse button. Alternatively, consideration could be given to using a single click of the middle mouse button to open FF/TB from the Tray.