Windows 10, again synchronisation stopped to work!!!
I'm sick and tired to reinstall because it loses all my extension and it's a pain to have to redownload them all and reinsert all the options.
After years of using Opera Developer (which also stopped to have synchronisation!!) and beta, after having used for a couple of months this 'stable' (!!!!! Oh, please!!!!) version, I'll give up and switch to better browsers, having Opera followed, seems, the same decline of Skype and other corruption to the product of the same 'brains'!

Thank Opera, I can avoid keeping open Telegram and Facebook, BUT the red dot on the icon sidebar alerting me of an incoming message is not visible in the dock icon nor announced in Notifications Centre, so I can't be alerted if Opera is in the background nor if I'm coming back after a short absence.

Funny, after having the same problem, I gave up clicking 'forgot password' and PUFFF I was logged in!!!