I am experiencing a strange behaviour in the pop-up message window when I try to close Opera 58.0.3135.127 (CMD+Q).
With only 1 Gmail TAB open, the warning shows ".. .3 open tabs?" message,
while if I add a second TAB with a new web site, the counter shows correctly "... 2 open tabs?"
Tried to clean the cache and restart Opera. Same behaviour.
Anyone can double-check and confirm?