Removing Rambox Tabs

Apologies if this isn’t an issue for here. I am adding tabs to use on Rambox, Gmail, Hotmail etc. I want to remove one but can’t work out how.
Googling says hover over the tab and a bin appears. I’m seeing nothing like that.

It is indeed rather unclear, in the latest version you have to go to the main page (click the rambox login in the top left corner)

There will be a list of all your tabs and there you can delete them. I would also have expected to be able to delete the tab itself with a right click or something.