How Kill this 'System PopUp' (photo attached)
It now appears regularly when I'm trying to type in Safari URL address bar, thus making it impossible to continue typing, and no keystrokes can make it go away.
But will even appear e.g. when I'm trying to type this post here.
I'm not touching the keyboard (except to type), not clicking the mouse (except to left click in the URL bar or in this post), not touching the Trackpad.
Sometimes a whole blank line gets highlighted even though nothing there, and the pop up appears and I can't type.
Sometimes a word, or the address I'm trying to type in the URL address bar gets highlighted and it happens.
Humm...yes, it appears linked to unwanted Highlighting but I don't know for sure.
AMAZINGLY ANNOYING.