I use this as a replacement for the discarded panorama feature. Tree structure proves to be handy or even extremely useful. A spot-on use of the lateral panel, making for a perfect integration.

Still sketchy in nightly (currently 61) with new windows popping up when dragging tabs. Otherwise, quite stable and reliable. [Edit] As of Nightly 61, no tab dragging issues after several hours testing in 61. So I was wrong, nothing sketdchy about it :). Awesome!

I would still browse pre-quantum if it wasn't for this. THanks indeed.

Seems to break the lateral panel or rather lock it down. I installed an experimental feature (notes) which uses the side panel as well. NO dice. I suppose it's worth looking into it here :
https://testpilot.firefox.com/experiments

This extension makes me say "WOW!" It has so much functions to control tens and hundreds of tabs.. Definetely more fucntional than Tree Style Tabs plugin which I used before, I going to use this plugin instead.

Thank you for your efforts in manufacturing this software, it's useful and beautiful. I have already recommended this software to my friend. I have only two questions, both of them are about the session.

(1)When I restart the Firefox, and click "History -> Restore previous history" in Firefox menu, tabs come back but without folders and groups, I have to import my previous session backup to solve this problem, using the "Import and merge session" option.I hope this is an automatic operation.

(2)When I start the Firefox, click the add-on's menu "Import session", and select my session backup, and horrible things have appeared, Firefox start loading the tab one by one, because amount of my tabs is huge(about 150), so it cost me 20 mins to load, and finally used 7G memory.

Can you solve these 2 problems? My Firefox's version is "Firefox Quantum 58.0.2(64-bit)". Looking forward to your reply! Thank you!

Make Tree Style Tabs looks overrated. =)

Hey, a suggestion:
What about a new config to bind groups to containers?
Then opening a new tab on that group will always open a tab of the chosen container.

This is fantastic! The features are so much better than Tree Style Tab! Why doesn't this appear as a related extension or higher in the search rankings!?

This addons very comfort use as "dynamic bookmarks" and I have a few good recommendation for improvement:
- folders must always collapsed default or make this setting for it. Folders good using as subgroups for left tabs groups;
- when actived tab located in folder, all tabs operation related with creating new tab (such as clone of tab in folder, new tab) must work only in current folder. -- New tabs creating in current folder;
- with close folder all inner tabs and subfolders must closing;
- add possibility unload all tabs for folders (in folder content menu);
- add possibility open all tabs in folder in new left tab group with deleting this folder;
- for economy memory your tabs must to makings (html code) during activating left tab group or during unfold folders/trees;
- real FF tabs must creating and linking only after activate your tabs;
- option unload tabs must close real FF tabs, but your tabs must markeds like unloads and stay in list.

Also all your tabs you can save in special folder of FF bookmarks and working from this place, where subdirs first level = groups for tab in left... Option for set base bookmark dir for addon can add to addon config.

If in FF enabled option about save tabs before close program, then with restoring tabs of browser, you addon just must merge self ungrouped tabs with other.

PS Addon is full replacement FF tabs, which must hide. Meanwhile I hide it through "userChrome.css".

I am going to second almost everything "Anonymous user 762ab4" said down below, at least all the compliments. Unlike that user, though, I still recommend and keep using this extension, since I don't seem to have the same instability issues regarding opening Firefox. I only witnessed a single little glitch at launch, that I will include in my list of improvement suggestions (which incidently also include all of "user 762ab4"'s own suggestions :-)):

- So, most times I open Firefox, although I get my session back (including groups and tree structure), my own theme (that I, of course, saved) very rarely loads up automatically. It is an easy fix, since I simply have to open the Tree Tabs option page, which gets my theme to instantly load up. It's not a big deal, but it certainly isn't the intended behaviour, and it still adds a step to the process of getting the browser up and ready and to my liking...

- Like several other users already mentioned, I have also experienced the issue of tab dragging between groups actually opening them in a new window, and it is indeed quite annoying.

- Although I do save my sessions very regularly, an auto-backup function would be wonderful.

- I also support the suggestion of integrating Tree Tabs with Firefox sync. I definitely would have a great use for this possibility.

- The Tree Tabs integrated right-click "Undo close" doesn't seem to be working (but Firefox "Undo close tab" functionality, when you right-click on the horizontal tab bar, does.)

- I don't know if this can be done, but, if it can, I would love for Tree Tabs to systematically integrate all available right-click functionalities (that is, include all the functionalities from other installed extensions.)

- Like many other commenters suggested, it would be wonderful to see some indication of the container a tab was opened in, if any. Getting an option to directly be able to chose to open a new tab in a container would also be very useful.
*** BUT, unlike what another reviewer suggested - which Kroppy then said he "had in plans", which really worried me - I would absolutely HATE to see containers used in place of the groups! Contrary to what said reviewer claimed, there is no "redundancy" there. Containers and groups of tabs have very distinct purposes (I won't elaborate on the distinction, there's tons of info on that topic). I for one know how to use both properly, and certainly do, which is why I need to be able to make the most of both functionalities. Several extensions already base their so-called "groups" on containers, and they don't do the trick for me. Seeing Tree Tabs join this trend would unfortunately be a total deal-breaker, as far as I'm concerned.

- Regarding the theme customization (which is already amazing, I must say!):
1. I would kind of like to be able to change the font, yes, but what I would REALLY love would be to change the size of the font of the names of the groups (those that lay vertically, and that we click on to access each group's tabs). I really have trouble reading them, and being able to increase their size slightly would help a lot.
2. Just like user 762ab4 mentioned, it would be great if the theme customization was extended so we could choose to visually distinguish between folders and their respective tabs.
3. Maybe some more details could be added at some places, in the customization options, since it's not always obvious what each option button applies to. For instance, in the "Toolbar" section, the buttons in the grouping of 4 apply to the Search sub-menu, but unless this sub-menu happens to be open at the time you are doing the customization, you have no idea what you are modifying.

- Finally, I'd like to say that I am definitely against "Anonymous user eb4478"'s suggestion (sorry, user! :-)) of only loading one group at a time. Here again, several extensions already do that, and that is another of the main reasons I use Tree Tabs, and would never use any of those other extensions again.


In conclusion, Kroppy, this is a powerful, incredibly helpful and very unique extension, and I thank you for all the time and effort you are dedicating to this project! Thank you, thank you, thank you! :-)

Great addon. Much better than Tree Style Tabs in many aspects. Give it a try and you won't regret it.

Faster than Tree Style Tabs. But it's necessary to do something with synchronization with tabbrowser-tabs. Moving tabs in tabbrowser-tabs is not tracked.

I'll spare you a lot of reading, as most everyone else has touched on this extension's many features and usability. I will add that I like how visually appealing the tight spacing between tabs is, allowing me to see so many so clearly. Also, if you haven't noticed, the developer is uber-responsive and actively engaged in his project, which inspired me to send him a donation right off. This has made FF so much more pleasant and practical to use for me.

Lets you keep a BIG number of tabs open without getting lost in the list. This is as close as I've found to a replacement for Tab Groups. Thanks to one of the "improvements" in the new FireFox, it seems you can't actually have hidden tabs, but with this extension you can arrange tabs in a collapsible hierarchy like an outline in MS Word, so the sidebar shows only the ones you want immediately available. (All tabs still show up in the tab bar at the top of the page.) I was using Tree Style Tabs for a while, until I realized that it wasn't a preference I had set wrong: that extension actually doesn't have a tab search.

Overall, this is just plain great. It's why FireFox is my main browseer.

But still…

• When I save a session with a lot of container tabs, they reopen as ordinary tabs — meaning, if I understand the documentation, all the usernames, cookies etc. I've been keeping for separate user IDs are suddenly visible to every site. (If you just quite FF with preferences set to restore windows/tabs, the container IDs *are* preserved.

• Search function should open any tab currently hidden by collapsing higher levels of the tree. Right now you can't see any hits in collapsed tabs, or in groups other than the current one

• Container tabs should show their container color

• Auto-collapse (hides other stuff when you expand a branch of the tree) should collapse only at the highest level, so that one click redisplays that branch as it was before you opened a different one. At the moment, this function collapses everything. If you have a top-level tab with 20 descendants at three different levels, you only see direct children when you reopen

As a long time treestyletabs +tabsgroupmanager combo user (I still have my home machine running an old version of FF just to run both these extensions) I see this as a improved replacement for both once all features have been implemented. FOr a preview use Opera and Vertical Tabs by this author :)

---
Thanks for the update kroppy. Nice to see a developer so involved. I'll hold off using FF as my main driver until they fix their local storage and you can implement suspend group.

---
OLD


No suspend group? I wanted to switch over from opera where this extension kicks ass (as "Vertical Tabs") but since this is missing suspend I have no use for it.

Lots of nice features in the opera version (colors for one) will the missing features be implemented in future release kroppy?

Worked when first installed; does not show up at all now--not on reload, not on install, not after system reboot.
++++++
Doesn't seem to be a place to reply to Kroppy, so editing the review will have to do.

Reset didn't work, until I resubmitted my review; then suddenly the icon to load the tabs worked. FF Quantum seems to have lots of bugs.

I did not test all functionality of this plugin, only the search functionality.
Does not search all open windows for all tabs. Only searches one window.
You must have one window open will all tabs in this window to use this addon's search feature across all open tabs. I currently have 16 browser windows open. Most of which have several tabs open. I have them divided by projects and tasks. I have to click one by one to find the site I need to be working on.
There is a plugin that does this for chrome. I don't want to use chrome, today!

Why 5 stars? The other features work wonderfully.

Absolutely love this addon! Must have for every person with 10+ open tabs.

Nice addon!

The interface can feel a bit clunky at times but it is not a dealbreaker by any means.

La possibilité d'afficher les onglets dans la barre latérale et de les regrouper permet de gérer visuellement ces onglets. L'interface est agréable même s'il reste quelques bugs (je pers parfois l'ordre et les groupes;; mais je pense que ces petits soucis seront vites résolus).
Merci beaucoup pour cette extension très utile et pratique.

Just started to experiment this extension and it seems to be very interesting.
Still got an issue that I cannot fix: same parameters on 2 different computers brings different behaviour: on one of them, moving a tab from a group to another automaticaly creates a new window (found no option for this).
Thanks for your job and help.

узкие табы в отличие от TST, настройка темы

MY LIFE SOLUTION

Fairly complete solution for tree style tab interface lovers

Fantastic Extension. Allows tabs to be sorted in a tree and in separate groups. Has just about every functionality I could ask for. The only other functionality I could ask for would be to have folders in the tree that tabs could be placed inside of so that you can give a more friendly name to a group of tabs. Really, really great job.