Do more on the web, with a fast and secure browser!
Download Opera browser with:
When I move the mouse over the tab, this window opens. How can I close it?
@cat174-0 Goto the URL opera://flags/#fast-tab-tooltip, disable the flag, and restart Opera, everything will be as before.
@cat174-0 that is called tab preview go and check your tab settings
@omi-kun That's fast tab tooltip