Same if you do ctrl + enter in the url or a containerized tab. And you still have no way to have bookmarks that open in a specific container. (you can however

Same if you do ctrl + enter in the url or a containerized tab. And you still have no way to have bookmarks that open in a specific container. (you can however flag a URL to always open in a container since recently). But it's just because the feature is very new. They do listen to the community, and will fix it on the long run. At the very beginning containers where unusable, because even links you clicked would not open in the same container :) The community reported it and it was fixed. So don't worry, it takes time, but Mozilla will do the right thing. They most often do, that's the beauty of it and why I kept using Firefox to support them, even when it was clearly less practical than chrome.