> I had some tabs (mostly YouTube) opened thrice when clicking on a YT link.
Some of the multiple tabs issues have been fixed in version 6.0.0. And the upcoming version will fix them completely.
> They don't automatically switch back to the default container. That's a big problem
I've added an "Isolation" feature to the just published version 0.67 of the Temporary Containers Add-on that gives you several ways to avoid accidentally staying in the same container - including an option to only allow "Always open in" assigned domains to load in their container.
Some of the multiple tabs issues have been fixed in version 6.0.0. And the upcoming version will fix them completely.
> They don't automatically switch back to the default container. That's a big problem
I've added an "Isolation" feature to the just published version 0.67 of the Temporary Containers Add-on that gives you several ways to avoid accidentally staying in the same container - including an option to only allow "Always open in" assigned domains to load in their container.