How to Turn On or Off Vertical Tabs in Microsoft Edge ...
3 Click/tap on Appearance on the left side, and click/tap on the Turn on or Turn off button for what you want for Show vertical tabs for all current browser windows on the right side. (see screenshot below) If you do not see a left pane, then either click/tap on the 3 bars menu button towards the top left OR widen the horizontal borders of the Microsoft Edge window until …