As subject says – videos freeze intermittently in Safari; videos in Twitter, YouTube, etc. Moving the cursor helps but doesn't solve the issue.
I've done a full safari reset per some recommendations I found earlier:
Remove Safari’s configuration folder:
Remove Safari’s window state:
Remove Safari’s application caches:
Remove Safari Cookies configurations:
Remove Safari’s preferences:
Remove user plug-ins:
Remove global plug-ins:
(left this one behind – iPhotoPhotocast.plugin).
I downloaded the EtreCheck app and ran the report, as attached via Additional Text.