Native Tab Grouping / More Customizable Tab bar

[Vinci480]

I'm personally a heavy tab user but have always wondered why there is almost no support for tab grouping or customization in the native tab bar in Firefox.

I think making it able to group like Google Chrome does for example or at least giving more access for extensions and add-ons would significantly improve the UI in that regard.

[meia]

Is there no way to re-order tab groups?

[cjones]

@Jonwould you be able to shed some light on the Firefox multi-account containers and how it will integrate or coexist with the new tab groups feature? To make tab groups work well, it's important that we can containerize the groups and separate data for security and privacy reasons.

Now that a tab group can be created, a color assigned and displaying properly, it would be nice to have the ability to link an account container to a tab group and disable the container color. Right now if you open a tab in a container (lets say Work) and add it to the tab group "Work" it duplicates the color (see below).