$ brew install selenium-server-standalone $ cp "/usr/local/Cellar/selenium-server-standalone/2.25.0/homebrew.mxcl.selenium-server-standalone.plist" ~/Library/LaunchAgents/ launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.selenium-server-standalone.plist 便利な時代になったもんですね。(結構メモリ食うのでウザくなったら起動しない設定に変えといたほうがよさそう)