Some sites, for example newspapers, have some sort of video around their written news. When I scroll down to read (other news), this video comes with it and jumps down to the low right corner and continue to play. I am not interested, and have to cross it away. This is for Firefox, but not for Safari or Google Chrome. I have tried to find the setting to deactivate this annoying video, but cannot find it. I run iMac 2017, Ventura 13, and Firefox 106.0.3. One example is on this news article https://www.di.se/analys/lattnadsrally-i-storytel-men-morka-moln-vid-horisonten/