Sometimes my text cursor in Firefox changes shape. Normally it is a straight vertical line, but sometimes there is additional short horizontal line near the top:
It does not happen for all text boxes. It also does not happen in other applications.
What happened? In what situation such cursor would be used?
I think this started after I was trying out different display languages in Windows. But when I returned to original language the original cursor didn't go back. Is that cursor maybe used in one of languages that I tried?