@747driver said in Click twice to close tabs - sometimes:
The only way to solve this is to restart Opera (sometimes multiple times a day...).
You won't want to hear it, but I solved this problem another way (for exactly that reason): switched to Vivaldi
It's obviously off-topic for this forum, but frankly if the Opera developers don't care to investigate and fix the bug, I have limited patience to continue using their browser over the multitude of others!