The custom of opera
Opera is arguably the most annoying browser out there, aside from Internet Explorer. Opera is tied to Sogou, doesn’t allow other search engines, and has a lot of advertising. Developer mode can’t even be opened by pressing F12, it’s really hard to use.
But everything can be set up so we can easily fix opera binding to Sogou and F12 not working.
Solve the sogou problem
There’s a bunch of Settings, and I’m not going to go through all of them, but look at the picture.
