Plan 9 from Bell Labs’s /usr/web/sources/contrib/stallion/root/386/go/misc/chrome/gophertool/README.txt
To install: 1) chrome://extensions/ 2) click "[+] Developer Mode" in top right 3) "Load unpacked extension..." 4) pick $GOROOT/misc/chrome/gophertool Done. It'll now auto-reload from source.