In ubuntu firefox, when I open a new tab, it does not appear in the bar at the top next to the existing tabs. Then I can't figure out how to switch between the hidden tab and the visible tabs. I must be missing something trivial, but I have no clue how to switch tabs.
To use Tab Groups, press Ctrl+Shift+E.
I think a video will explain it better: http://www.youtube.com/watch?v=zU_MMUgEPes
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