Download Opera 12, run the installer, click "options", set the "install path" to your existing Opera so the button at the bottom says "upgrade", check "use Opera as my default browser" and install. That should fix any registry keys for Opera 12.
Then, if you have to, go into default programs and set Opera as the default again. Also, goto "Alt + p -> advanced -> programs" and check the box to make Opera the default. Also, goto "details" and if it doesn't load default program and gives you a list of stuff to check, check them.
If you have to, check that the command in "HKEY_LOCAL_MACHINE\SOFTWARE\Classes\http\shell\open\command" is correct. Check the ones in HKEY_CURRENT_USER and HKEY_CLASSES_ROOT too. Also, check the ones for https.
For those of you NOT experiencing problems, do this. Save Opera to another folder and start fresh. Look at all the problems, then get back to me.
I could post the full list of bugs I reported in the bug report wizard for Opera Blink, I could also post the full list of Opera Presto bugs I reported. That'd be of no use, it's not me who must post about the issue(s) (and it doesn't really belong to this thread).
Alt+Enter will open the search in a new tab, so you can go back to the previous tab and edit the previous search term and/or switch to another search engine.
What's missing is DNA-8233 or DNA-11336 Shift + Alt + Enter (or a similar command, but requiring a reshuffle of the keyboard shortcuts) so you can open the searches in a background tab, which would make things easier.
Sorry guys but I never get emails for replys on subscribed topics.
Thank you for all the replys. At the end, I had to brute force close Opera (before I could read your advices), but thanks God nothing happened. My concerns were unfunded. But really thanks for them. I hope to never need them 😉
and right now there are actually 11 opera.exe processes running.
WHAT THE FUCK? Bye Opera. Hello Firefox.
Ok, bye, we see you again after Mozilla implements Electrolysis in Firefox...
Have a good time until then.