Unable to use controls on Youtube videos in Full Screen.
I can use the video controls like volume, or click pause or start, or any of the controls - until I go Full Screen. Then they all freeze, and only way I can change anything, or even pause or stop the vid, is to hit the escape key on keyboard several times. Then vid returns to small/normal screen, and I can use the video controls again. Only started doing this yesterday; I updated Mac earlier yesterday, from Mohave to the latest OS Catalina. Had this new Mac 3 weeks. Positive it's not YouTube; could it be this Mac/upgrade? Any ideas? Thanks.