@sgunhouse
Ah, that's a good idea, thanks. I'll check on that, but for now I've simply reverted to the Video Speed Controller defaults and it's working okay again.

Somebody told me about the Video Speed Controller extension, I downloaded and installed it and at first it was working great. Maybe it still would be, but I tried to change the speedup keycode to lowercase F and now it isn't working, because the F keeps toggling full screen. I don't see that F is supposed to be doing that even if "Enable mouse gestures" and "Enable advanced keyboard shortcuts" are turned on, which they aren't. I don't have the F key or anything else set to toggle full screen in my Mac keyboard preferences either. Can anyone tell me if it's possible to get F turned off for full screen in Opera, and if so how? Thanks.

I have searched the Mac Opera forum messages on "content blocked" and not found anything apparently pertinent to my question, so I hope this new topic is okay. I have also discovered that it is possible to turn off content blocking, but I don't want to do that. I appreciate the Opera content blocking and want to retain it, but find myself repeatedly annoyed by the constant reminder that the program is doing this, namely the yellow bar with "Content Blocked" that comes out to the left and then retracts in the address bar every time I load a page with blocked content, which is very often. I don't figure that it's possible to retain the blocking and get rid of this... annoyance, that's what I'll call it because that's what it is for me, sorry. But if it is I'd certainly appreciate hearing how, and if it isn't I'd like to receive support from any other Opera users who read this and have a similar feeling about always having to be continually reminded that Opera is blocking content. It's okay at first to have this drawn to one's attention, but it gets old and, again, annoying. Thanks.