@fatimaansari except those options are not presented in the mobile version (or the latest PC version, either).
Oddly, I was able to sync all of my bookmarks, which I don't care about, but still can't sync the passwords.
On your Android device, open the Settings app and click Google Account.... On the Security page, tap the Security button.... You can access passwords from websites that you are logged into via Saved Passwords....
I have been using Opera for 3 years. I recently changed PC, I installed Opera but it forgets me every time I turn off the PC all the logins. I have no idea how to fix this, I'm going crazy and I wouldn't want to switch browsers for any reason in the world.
Hope anyone can help me