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Trouble with Ctl+Shift+e

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I believe this key combo is supposed to show all tabs, but they show up overlaying each other in the screen; so they violate the purpose Is to see all tabs!

I believe this key combo is supposed to show all tabs, but they show up overlaying each other in the screen; so they violate the purpose Is to see all tabs!

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See if this support article helps you understand how TabGroups (Panorama) works:
https://support.mozilla.org/en-US/kb/what-are-tab-groups