Pausing, exiting the Netflix Player's fullscreen (i.e., Esc, not the browser fullscreen) and then minimizing the browser before sending the STOP signal improves the reliability of the workaround above, avoiding X11 glitches.
Pausing, exiting the Netflix Player's fullscreen (i.e., Esc, not the browser fullscreen) and then minimizing the browser before sending the STOP signal improves the reliability of the workaround above, avoiding X11 glitches.