I recently move from Vivaldi and this is what I was looking for on Firefox. Best extension I've ever installed, configuration page is also extremely friendly and useful. I wish I can vote twice.

First addon I've bothered creating an account and writing a review for because it is just that danged good.

I installed this addon for tab management, but I discovered it has many other features that make it stellar. (See below)

3 tips for those starting out:
- Click on the gear icon to see the million customization options.
- Enable the bookmarks section so you can go back and forth between your tabs and bookmarks in one section
- Double click on empty space below your tabs to create a new tab

## UI / Aesthetics
- Muted, minimalist, great for those using Dark themes (although you can change most of the colors, I really like the defaults)

## UX
- You do have to do things in the app the way it wants you to.
- Might not be as use friendly as it should be. Perhaps the developer can do more to make the app user friendly. When I installed the app for the first time, it didnt even have proper screenshots on the firefox addon page. These new screenshots will help a lot with new user onboarding.

## Tab managment
- Does everything I would want with a tab manager:
-- Grouping tabs
-- Nested tabs
-- group open / close
-- Etc etc (everything else a tab manager type extension does)
- What's missing:
-- Session management (I have yet to investigate the snapshot feature
-- Ability to rename your tabs
-- Ability to look at the tabs from other windows (Although you can move tabs between windows using the right click menu, so this isn't a huge minus)

## Bonuses
- Containers are nice! I have to use them more, but its like a way to have "environments" for your browsing
- Developer seems to actively maintain this addon. Keep on chugging! I hope this addon gets the attention it deserves!

Review Edited: Awesome Addon, A worthy replacement of tree style tabs or Tab Group Manger etc etc. This one is full blown package with a lot of customization.

One request from developer to add tab search feature.

удобная штука спасибо.

awesome! simple, does everything i need and even more! Thank you!

top tier addon

When Sea Containers did not work even after the fix for the addon fiasco, I was distraught. I have 150 tabs open and firefox would be hard to manage without it. I had the good fortune to find this excellent addon. It is even better than Sea Containers!

Damn.. I was looking for some tree tabs with tab grouping.. This.. it looks perfect.. Unless i end up with some annoying bugs or performance issues I'm sticking with it :D Great Job :D

If there's one or two things I'd love to see..
edit: actually option to switch Multi Account Containers displayed icons to STG would be perfect.

Great start. Big future

Very nice addon, well designed, and adds real value to the tabbing process.

I keep lots of tabs open -- all day -- personal, work, client etc, and this addon is the first I've come across that makes containers actually useful!

This extension is amazeballs. It kicks the pants out of the other vertical tab offerings!

Well done. Thanks for creating it.