Hi, I have Opera 66, for several reasons I had to format my PC, I installed my favorite distribution which is KDE NEON and then I installed Opera, then I installed qbittorrent, but no matter how hard I try I can't get qbitorrent to open automatically when I click on a magnet link, I always get a window that asks me if I should start the application or not do anything, which is very annoying, I am sure that before formatting I didn't have this problem and qbittorrent opened those links directly and without questions, does anyone know how to configure it? Thanks for your help.

Hi, today I realized something, I opened netflix in Opera and it worked without problems, it played the videos and everything looked perfect, I use Kubuntu 18.04, a few minutes ago it occurred to me to update the apps (sudo apt upgrade) within which was Opera and now although I can see the previews when trying to see a video I get the error O7121-1331, I did not make any special arrangements or workarounds, I have installed chrome to see netflix and nothing else, I hope that with the next update I can see netflix definitely, I also tried on a website that was suggested in the forum and says opera uses widevine.
Forgive my bad English, it is not my native language.

FIXED: Opera 55.0.2994.44, Still can't play Netflix.

Same problem here, using Kubuntu 18.04 LTS, the sidebar won't close, only workaround is minimize and then restore opera.