illegalvirus·6년 전·discussI came across this on my macbook pro. Kept falling even after reboot. Restarting and installing in safe mode got it upgraded for me.
illegalvirus·6년 전·discussThe big one here for web-devs has to be "Show Tabbing Order" feature in the Accessibility menu in the dev tools. Being able to see this should save a lot of trial and error.