While the extension is incredibly useful, it has some glaring omissions.
For some inexplicable reason, once you set a container as default for a website, you can never clear that default again, at most you can change it, but if you have multiple containers for different accounts on that same website, whenever you are browsing it and want to open a link in a new tab, it will always, at the very least, prompt you to open on the "default" container, which is incredibly annoying.
Another incredibly annoying thing is that you can't truly sort your containers, they will always be on the order they were created. And whenever you reinstall Firefox, or install on a new device, and need to reinstall your extensions, including this, the containers will again, be in the same order they were created, and even if you sort them to your taste when clicking on the extension icon, in the "Open Link in New Container Tab" context menu, they will always be in the wrong order.
Please fix this, devs.

Es ist eine dieser coolen Erweiterungen, die man erst mal finden und verstehen muss.
Wenn man sie aber eine Weile nutzt merkt man, dass Ordnung entsteht. Ich habe nun mal eine Welt, in der man mal abhängt, mal arbeitet etc. Und mit dem Container kann ich die vielen Tabs visuell trennen, den richtigen VPN-Standort zuweisen etc.
Gern würde ich die Tabs besser gruppieren können, so wie im Chrome. Aber vielleicht kommt das ja noch. Aber deshalb eben nicht alle Sterne.
P.S.
Aktuell verwende ich deshalb zum Gruppieren die 'Tree Style Tab'-Erweiterung.

Muito útil e poupa muito trabalho!

работает отлично

good

Cette extension permet de bien séparer les onglets, comme si nous étions sur des instances totalement différentes. Cette extension fait partie de mon top 5 !

A whole world in a container - and then another whole world - and another - all color coded!

Probably the biggest reason for using Firefox. Don't have to switch profiles, etc and let's me have a single window where all tabs live;

Super helpful to manage multiple accounts across the same website, MS, etc so there's no overlap between the different tabs