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.

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.

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

Main thing I want from a tab manager is for it to auto-save sessions so they can be restored when Firefox inevitably fails to reload them after a restart. This does not appear to do that. It appears to do nothing but facilitate navigating between tabs, & suspending some tabs that are not currently needed. It seems to do those things OK, but they just aren't nearly as important to me as the baseline functionality of saving a list of open tabs to be restored on restart.

I'm sorry, developer, but I've tried and tried to get a manual for this extension, to no avail. The user interface is not so obvious that you don't need one.

You say "You can even save all you windows and tabs for later with just one click!" - ok, then, how do I do that? I had a ton of tabs open, clicked on the "save websites for later", closed firefox, and when I came back there was no sign of those tabs anywhere! I'm so aggravated!

Please include documentation for your project! Your shortcuts don't help. A window is a collection of tabs? Or is that the little folder icon? Shortcut for opening last window does not work for me.

Why do you assume we know these things? Btw, I'm computer savvy, even dabble in a couple of programming languages. And yet I cannot use your extension!

If I've denied the permission for tab preview, just go ahead and disable the preference for that instead of bothering me again and again about it.

Extension opens "what's new" tab in spam-like behaviour. Today it opened amid my game, giving me a ping spike for something definetelly not urgent. I know the developer works hard to make this extension even better, but invasive behaviours like this are annoying and should be opt-in.