Near-perfect in its simplicity. My only quibble is that I don't think it has the ability to hide hidden tabs, which would be nice.

Если выделяя вкладку чуть шевельнуть мышь, то открывается новое окно браузера и туда переносится эта вкладка и все дочерние. И если их много, то все зависнет.

If you move the mouse slightly while selecting a tab, a new browser window opens and this tab and all its children are transferred there. And if there are a lot of them, then everything will hang.

Has to most features compared to other extensions and is very responsive. Sadly it seems like the extension is no longer maintained. The license prohibits derivatives so it's impossible to continue developing this extension.

Really bad bug keeps on moving tabs to a new window when I click on the tab.

3 years from last update and still the best tree extension. Tried Tree Style Tab, but still no where close to this one.

It has groups, folders, suspend, restore, pin, so many features

Great add-on but with a few bugs and missing features and without support. It's been 3 years since the last update. It'd be great if the dev would at least reveal if he intends to service this code in the future or not.

I tried Sideberry and Tree Style Tabs, this is far better simply for it's handy toolbar at the top and the ability to unload all tabs except for the active one.

Super add-on. The first one I install on any new FF install. For tab-a-holics like me it a must. You can search tabs, jump back and forth, and rearrange from the list.

Been using Tree Tabs for several years without a hitch.

Anyone who does research online and has many research projects running at once likely has dozens if not hundreds of tabs open at any one time. Tree Tabs makes navigating hundreds of tabs easy and manageable.

Some people are saying this app frequently crashes, but it is NOT the case for me on an old laptop running Windows 10.

Firefox is a memory hog, so perhaps having problems are running out of memory? I am using Tree Tabs on an old HP Elitebook G3 laptop with 16GB of RAM and never have a problem with Tree Tabs. On occasion Firefox will bog down to the point of not being usable due to it not freeing up RAM properly, in which case I simply close out of Firefox and restart and all tabs are restored.

TIP: If you are running multiple instances of Firefox (i.e. multiple open windows) and want all the windows reopened upon restart, close all Firefox windows at once by using Windows Task Manager (shortcut Ctrl + Shift + Esc) and select Firefox from the list of Apps and click End Task. This will close all windows at once and when you restart Firefox all windows will reopen.

Tree Tabs add-on makes Firefox one of my favorite browsers (although I prefer Brave for its speed, better memory management, and some privacy features [although Firefox Containers is a plus for privacy]).

Great extension. Tab groups is a fantastic feature and overall I prefer it to Tree Style Tabs. The ability to rename tabs would be excellent, as well as perhaps a visual style a bit closer to TSTs.

Great on Linux, doesn't work on Windows. On Windows, it keeps blinking. I think it keeps reloading that is. Tried on two Windows machines. On Linux it runs fine, except sometimes it forgets the hierarchy/organization of the tabs.

This addon is the only reason for me staying a firefox user after FF 89 update (even earlier on with some mozilla's bad privacy behaviour). I love this addon since it aids me in my research making everything organized. Thank you very very much kroppy for making my life easier!

Crashes about 60% of the time when I try to use the "Close tree" function - I have to to go "Manage Extension" and select "Options", then it comes up with an error that says "A web page is slowing down your browser" and I select "Stop It" to get it working again. Consistently.

Also it'd be really nice to just have the option to have it close tree automatically, but I'll settle for just having the function work without crashing the extension and freezing my browser.

Why can't i open a saved session in private browsing mode?

Fantastico, semplice da usare ma con features molto interessanti (ad esempio vari modi di raggruppare i tabs, possibilità di salvare singoli raggruppamenti nei Bookmarks, o di esportare tutto su file)