A useful add-on. I cannot ,in Goup tab use google search
"Open this site in your assigned group? "Always open in...
it"can't works.

It the 'Remember my decision" checkbox doesn't really remember it."can't works

It's a pity that the developer abandoned this amazing extension. I've gone through almost all the addons available at the moment, including the most popular ones, and I can say for sure that this extension, even despite all the bugs, is the most suitable for me. The most conspicuous bug: If I open window 1, then window 2, then close window 1, then close window 2, then when I open firefox all the tabs which were in window 1 either simply disappear or lose coherence and fall together into the first group, while the other groups become empty. The "open this site in your assigned group" feature doesn't work

This is much faster than Tree Stye Tabs, which was struggling and slowing down FF. In fact Power Tabs is instant on when you restart FF. I like the ability to group and set group names and colour code. A great little extension that I would keep simple and not overload with other features.

It does remember the groupings upon restart, however if you have to do a session restore, using e.g. "Tab Session Manager", then all the tab groupings are lost. Fixing this would make this a perfect plugin...!

One change I would consider is the ability to colour code group titles directly in the sidebar instead of going into settings... although this is not really a problem.

Another is the ability to preview a webpage upon mouseover - the preview could be a full browser page or the Windows Desktop Taskbar type mouseover preview.

Why is this not a recommended extension!!!???

great addon, a perfect replacement of the former tab group. but still some bugs, when changing groups or create new tab, sometime will not hide other groups' tab, but show all the tabs; sometimes it works.

Needs sync or automatic backup, because if there is a problem you'll lost everything.
Bold the active group in sidebar, should be a good idea, because is difficult identify it.
A window for reorganize, panorama style, would be very useful too, in my opinion.
For the rest, very good and very useful addon.

Great overall addon to organize your tabs when you start to have too much of them (6/8+) : it uses the mostly unused horizontal space on the screen.
There are however some small issues that still bugs me :
* after restarting Firefox it can't remember in which group tabs was residing an puts them all in the first one
* the auto-assignment of tabs to groups is somewhat buggy : "Remember that choice" doesn't seem to work