It does not work anymore after firefox uptdate to 44.0.2 Rated 1 out of 5 stars

Please update it.
It was very useful to me.

Great Rated 4 out of 5 stars

That's great addon!
It will be the best if it has on\off button.

Great Add-on! Rated 4 out of 5 stars

IThis was just what I needed. Simple and efective!

Works, but slows workflow as much as it speeds Rated 1 out of 5 stars

It badly needs start hotkey. Burrowing down into menus just doesn't cut it. Also, right-click on chosen tab didn't work for me [had to go back into menu to stop it]. Must be click-start and click-stop or it's more trouble than it's worth.