All libraries missing in Symbol Library Browser after MacOS install

Just installed KiCad 5.1.6 on MacOS 10.15. Installer would not let me drag kicad to /Library/Application Support, so I did the copy with finder. No prior installation.

When I open the Symbol Library Browser it is empty, though Preferences > Configure paths indicates symbols are in /Library/Application Support/kicad/library. I removed the Mac quarantine attribute recursively on the kicad directory (which also has all x and r permissions granted), restarted KiCad, and I still have no symbols, though there is plenty in the kicad/library directory.

Read this FAQ.

Thanks a lot. Problem solved, by adding a global library (local too) and then following the Using the library manager section of the Library management in KiCad version 5 doc, I was able to select and add everything in the /Library/Application Support/kicad/library directory at once.