Essential when using Apple mice Rated 5 out of 5 stars

Although not critical for my own situation---right-click is available for most mice and trackballs under both Windows and LinUX---this is a necessary Extension for Apple hardware when using Firefox 4-up, as the Macintosh series has only one mouse-button switch even on later models with scrolling trackballs integrated into the mouse covers. Ideally, the history dropmarker would have been kept by default, given the obvious lack of a second mouse button on most Apple hardware.

In a short test on my Asus CM1630-06 running Microsoft Windows 7.0.8001, this Extenstion works as advertised, duplicating on the left click the current-tab history menu accessible from a right-click of Back/Forward on Windows and LinUX installations.