>Include the BrowserID include.js library in your site by adding the following script tag to your pages <head> tag <script src="https://browserid.org/include.js type="text/javascript"></script>

Not minified. Come on Mozilla, you did the same thing with the (rather large) Open Web Apps library. Minification is required. You are Mozilla, you should know this. YUI Compressor takes a few seconds at most.