Great add-on with a lot of feature. My only critique is that, it doesn't matter if you mark tabs as containers or in a group, all the tabs remain in the main view and when you have many tabs it just look awful. Sure, you have sidebery to help you but I think it would be nice if, upon switching to a container or a group it would only load those specific tabs in the view just like Opera does with its workspace feature.

This add-on is almost perfect! the one thing im missing and hope you can work on it , is the possibilty to stick/pin tabs like normal tabs. I Know you can pin a tab but it moves to the top like an icon and doesnt stay in its horizontal view with its title.
An idea: to be possible to stick tabs in horizontal view like normal tabs and the possibility to add a custom name for it, so it can work like a Shortcut in list view.
(because to add it as a bookmark has another behaviour and envolves another panel)

Also if it could be possible to show all panels tabs in tree view (with their name and color) one under another to avoid having to click in each icon to access the panel and then the Tab.

Thanks a lot for your work!

Add the Container Capability! ! MORE!
similar like Maciej Mionskowski — Container Tabs

Very good addon with possibility to hide your tabs that is good in tab-management, beatiful UI, but multi-panel doesn't work properly. Sometimes tabs dissapear from a certain panel, hope you will fix it.

p.s. Is it possible to change ONLY group icon color?
In example, "favicon-placeholder-bg" selector does not fit to this case very well, because it changes other icons aswell, but in order to visually separate tabs this thing could be very useful

p.s.s. Found solution if someone needs. Place it in Style edit.

.Tab[data-parent] .fav .placeholder > svg {
fill: red;
}

But it changes all your data-parent tabs, remember this.

If you need to change color/text-align of your groups in tab panel, try this:

.Tab[data-parent] .title {
color: black;
text-align: center;
}

Great potential, very feature rich (love the remove cookies per container) and great customisability.

The only tab manager I have seen that can backup and restore trees with the tabs containers.

I have 2 major questions:

1. The snapshot is just brilliant as a backup, fast and so far accurate. (Almost Onetab with container support and trees! Can paste into excel! Needs the site icons though to help identify tabs) Is there any external save for the snapshots to transfer them between profiles?

2. While this is perfect for users who use containers as groups, I don't. I often need tabs from different containers grouped together in 1 group (which I use to separate tasks), so I can see what tabs I have and switch between them easily. For example, same site logged in under different logins, or FB, google and shopping site pages on the same topic. Is there any way to have groups view pane, with tabs from different containers in the same sidebar pane (in trees with tabs from other containers)? (Tree tabs vertical groups are brilliant, separately exportable-but sadly cannot backup with containers atm)

Go Dev!

Excelente!
Aqui vai uma sugestão: "Include URLs" e "Exclude URLs" podem competir pela mesma aba, fazendo-a alternar continuamente entre o painel "x" e o painel "default" . Isso acontece quando URLs parciais são especificadas e as duas correspondem. Sugiro adicionar mais uma opção: "Maior relevância": "Included URLs" ou "Excluded URLs". Seria um critério de desempate. Por exemplo, quero incluir todas as URLs com a palavra "x", com exceção de URLs de páginas do Facebook: 1) "Include URLs": "x"; 2) "Exclude URLs": "facebook.com"; 3) "Maior relevância": "Excluded URLs". Desta forma, não haverá disputa entre os painéis pela guia do Facebook, e adicionalmente, mesmo que a condição de inclusão seja atendida, o Facebook será uma exceção definitiva para este painel.

Por outro lado, se alguém quiser que a palavra "x" impeça a abertura de todos os sites, incluindo o Facebook (e outras URLs da lista de exclusão), basta escolher a opção de "Maior relevância": "Included URLs". Neste caso, o Facebook será impedido de abrir neste painel, exceto se possuir a palavra "x".

Além disso, seria útil uma opção de backup das configurações.

The best sidebar container & tabs add-on which I came across. Three points which could be even better: (1) Show the number of tabs inside a container next to the container icon. (2) Make it an option to have the containers also displayed in a folded view merged inside the area where the tabs are listed (like the two other container sidebar add-ons do). (3) Add support of moving multiple tabs to a different container in one action.

Interesting, but is the 'Access your data for all websites' permission truly required?