Hmmmm. I so wanted to like this add-on. On the surface it provided a very easy way to organize tabs while not having to specifically bookmark them. You could create separate categories for each group of tabs you had set aside. Such a nice feature.

However, the reason for the low rating is despite how useful it could be theoretically, it really was a CPU hog. I cannot count how many times I had to force quit out of Firefox because Tab Stash was so hungry, my whole computer would die to a crawl. And if that couldn't be done I would have to resort to restarting.

It took me a while to figure out what it was that was causing this. When I discovered that Tab Stash was behind it all I then shut it down and with that everything returned to normal. But I was pretty disappointed in this. As the add-on really made life easier when it worked.

I thought that when tabs were stashed aside, they not only became inactive but were automatically turned off or unloaded so as to free up memory as well as release itself from eating up CPU. But despite there being numerous ways to set Tab Stash to do just that, it really didn't seem to have any noticeable effect. I gave up after being held up one too many times and having no choice but to restart my machine. There are just days when I have no time to mess around with things that make themselves more of a problem then they solve, and it was one of those days, so I ditched it. And with that, my system went back to normal, I was able to scoot about on the net as before, and outside of losing all my stashed tabs (so I thought) I could carry on in my normal fashion.

Later, I discovered that Tab Stash is nothing more than a clever UI that deposits all those stashed tabs in its own bookmark folder it creates within the Mozilla Bookmarks Menu.

Having discovered that, I simply continued to use that bookmark folder opened in the side bar where Tab Stash once sat. A simple Ctl-D and I can stash my tabs in that same folder, and then do with them what I wish at a later time. Sure, it doesn't have all the pretty functions up front, but I needed Tab Stash to do the most basic of things, which actually was the primary purpose for such an add-on in the first place. Failing that, I found doing it the old fashioned way utilizing Firefox's side bar, sufficed AND without hogging up CPU or decimating the memory.

Sometimes simple is best.

Fantastic but would love to be able to rename tabs. I use it for a website that every tab is named the same, in Microsoft Collections I can rename everything, but really want to come back to Firefox. I love having the side bar and being able to navigate groups in a simple compact way.

My Firefox 108.0.1 memory usage ranges from 40-50%. Installed this app and it maxed my memory to 99%. Firefox was very unresponsive, video and scrolling choppy. Removed this app and restarted Firefox - all is well.

must-have extension imo

Helps you to keep a clear mind. I love the minimalistic and compact UI.

I have not even started using it, and it annoyed me. No, starting automatically on all the windows is *not* a good idea. I do detest going through all of them closing this effing thing.

A fabulous extension with a very active and helpful main developer. The one star reviews should be ignored, as they are written by disgruntled people with minor problems. Like, well, in every site with star ratings.

Author is reporting unfavorable reviews to get them deleted so I'm posting my review once again, I also reported this extension as damaging because of that.

If you install this extension expect to lose tabs and never be able to recover them because for some reason this extension manages to make closed tabs impossible to recover.

Worst extension ever and It's a mystery how these extensions that actually destroy your data get recommended by Mozilla.

Not even Sidebery (which is a mess) made me actually lose tabs.

Edit: and completely unhelpful reply from the developer who also threatens to get this comment censored.

Usability wise quite complicated, this add-on mixes the concepts of tabs and bookmarks, which as such is an interesting idea, as most people use tabs as a kind of bookmark.

However, my greatest problems with the add-ons are
a) usability (I just don't understand when a tab is just hidden, when it is closed and re-opened from bookmark)
b) performance (unstashing re-opens tabs one by one which can easily take 20s for lots of tabs)
c) loss of history (actually the tab is not stashed, only the open URL)

The loss of history is my biggest problem which finally caused be to uninstall the add-on. A tab is often worthless without its history.

I really like this extension. The ability to - at a key combination - quickly stash what I'm working on for later, grouped by each event/date, is really clever! I like how it works through the bookmarks rather than trying to be a whole new system.

Sadly Firefox occasionally freezes while it is active (even though I am not doing anything with it) to such a degree that even Windows Explorer can freeze or restart (task manager can't open) and this is on a reasonably powerful gaming laptop.

EDIT: I've reinstalled this extension and everything seems to be fine after a few days. Perhaps I had installed something else at the time causing the freezing. Thanks again Josh for this great extension!