This add on is perhaps the best add on in Firefox. That's a bold claim - but it basically makes navigating via scores and scores of bookmarks workable. This is an incredible bonus for FF users and once again proves the open source model. Thank you Josh, if I could give Tab Stash 6 stars I would. But that would make the 5 star rating redundant, so probably better this way!

The best tab manager there is! What a life-saver!

After many years of using Firefox and other browsers, Tab Stash is the first extension that's made it possible for me to keep the number of tabs I have open under control. Its UI is thoughtfully designed to make common actions take as few clicks as possible, in contrast to using the browser's built-in tools. This extension is as indispensable as uBlock Origin. Thanks to the author, Josh!

Amazing for research - has completely optimised my workflow! Now I cant live without it. The recent sub-groups update is perfect for organisation too.

If you've come from Google Chrome to here and are trying to find a grouping extension that's similar, this one is! Instead of grouping them in the top bar, you'll have a little sidebar. BUT, the important thing is that it will let you close out of tabs on your main slider without actually deleting them. So, if you don't like having a bunch of windows open or tabs up on your slider, you won't have to!! You can even open one tab at a time or the entire group. An absolute lifesaver for me :)

This extension is the perfect marriage between tab mgmt and bookmarks. This should be a default Firefox feature

Great add-on. Specially useful for managing multiple sessions on a single site, such as Gmail.

searching for tab outliner alternative in firefox, and this is it(much better than tab outliner in my work flow)