Opera can't seem to find a way to fix their ad blocking for their mobile version. Their ad blocking sometimes works, and most of the time doesn't. Pop-ups and those that force to open an external app are freaking annoying and I don't understand why Opera can't block those. If your built-in ad blocker doesn't work properly please give us the option of adding an adblocking extension like Adguard. I truly hope that Opera can fix this and I hope they're trying.