jugglinmike/chrome-user-agent — pull request #1 by kevinburke (2014-03-05 23:15:42+00:00)
Title: Update device list, chrome manifest

I'm not sure if you're still maintaining this project anymore; "add device" seems broken for me, as well as clicking on "UA" in the browser, at least the options page updates your user agent, and I updated the list of devices to be somewhat current.