Anyone else experiencing text being randomly selected on LinkedIn?

As the title says ... ever since Firefox v110, whenever I view a post (content, images or reactions) on LinkedIn and close it again by clicking outside the pop-up, text gets randomly selected. Still occurring in Firefox v120 on Windows 10.

Interestingly, the problem doesn't occur if I close the pop-up using the "X" button.

Really annoying. I wonder if other Firefox users encounter this problem as well? Please let me know!