I downloaded this so I could move tabs between windows and it works very well but in recent months sometimes it will crash firefox when I move a tab. If it wasn't for that it'd be 5 stars.

I downloaded this so I could rename tabs- description says "Right click on a window to rename it!" - but it does not.

It works for me perfect

I really appreciate Tabby for the ability to Quickly View all your Open Tabs, throughout all your Firefox Windows. As I often have upwards of 10 Firefox Windows open at one time, this Extension allows me to quickly find the one Tab I was looking for.

I do have one major gripe however, which is the reason for the 2 Stars (and apologies for that by the way). The controls and Hotkeys for Tabby are so "User Unfriendly", I just can't wrap my head around them. I've gone through the Hotkeys list multiple times. They're just not the type of controls that stick in my mind. And unfortunately, the only place you'll find the list is here, in the Firefox Add-On store (and Firefox doesn't have quick-links in the Extension Manager that can redirect you to an Extension's Page, and so you're stuck fumbling to get to Firefox's Add-On Store, and then searching for Tabby). I've been using this Extension for 6 months maybe, and every time I try to do something "intuitive" I end up closing a Tab or a Window I didn't intend to. Moving something around, selecting who knows what that went... where?

It would already be an improvement if you could find the Hotkeys list in Tabby's Options Page. And if you could customize the Hotkeys yourself, THEN you'd be set.

I really appreciate Tabby for the Visualization part. And I do use Tabby quite often for that. But as far as trying to move or change anything in the Sidebar, I try not to touch anything. It's a "just look, don't touch" type of scenario, because I just end up too confused afterwards.

***Edit - 2024-10-30: I bumped up my rating from 2 stars to 4. I finally took the time to test out the Keyboard Shortcuts. It makes sense, even if isn't quite instinctive. By clicking on a Tab, Tabby redirects you to THAT Tab, meaning, if you want to Select Multiple Tabs, your FIRST Click must be while holding the Ctrl or Shift Key. Perhaps a slight tweak to the instructions would make this behaviour more comprehensive. In any case, Tabby is pretty good.

Interesting concept, also adopted by other tab managers (creates lists of tabs, which are much easier than tiny squeezed tabs in the built-in bar to view and handle). The preview of the tab is very useful, outstanding from other tab managers. On the down side, the save-all-tabs function does just that, saves all tabs... And nothing more. No management of saved tabs, controlled restoration, moving tabs, nothing at all. When restoring the tabs, it simply throws them all open at once, which can be disastrous if there are hundreds of tabs (even more so if the tabs are from authenticated sites, which may not like multiple tab access.) Last, but not least, restored tabs ignore containers.

I like this addon, but the lack of a user guide is frustrating. I only learned how to use it by reading the author's response to reviews here

Beautiful and nicely addons!!
Just one point is it super heavy for my old laptop...