My "mouse" seems to be closing tabs with not reason

haarbeli

Prominent
Apr 19, 2017
3
0
510
Hi,

For two days now, tabs on browsers, and on a pdf reader, just close without me asking them to close.

Basically, sometimes I *pass* with the mouse over the 'x' that should be closing the window, and without clicking on it, the window closes.

At other times, I do click, however not on the 'x' but on the tab itself - to switch to it! - and the tab closes.

What I tried - disconnecting the external mouse, and working with the internal laptop mouse instead. Results - no change
Running a virus scan with the (updated) avast antivirus - no threats found.

Thanks for helping me to figure this out