In Firefox on Mac OS, the 2-finger-swipe gesture is a shortcut for
back. This is often handy, but sometimes I use the gesture by accident.
When I accidentally do a "go back" swipe while writing a Stack Overflow question, I get the popup shown below. No big deal, I just click "stay on page" an go on my merry way, right? Not so fast. Regardless of whether I click
Stay on Page or
Leave Page, the popup comes back over and over. Presumably, the popup would reappear an infinite number of times, but I usually do
killall firefox to just close Firefox and start over.
Is this a common problem? If so, what can we do about it?