first-webextension2@tests.mozilla.org 2.0 xpcshell@tests.mozilla.org 1 1 XPI Add-on 1 XPI Add-on 1 - Description XPI Add-on 1 - Creator XPI Add-on 1 - First Developer XPI Add-on 1 - First Translator XPI Add-on 1 - First Contributor http://localhost/xpi/1/homepage.html http://localhost/xpi/1/options.html http://localhost/xpi/1/about.html http://localhost/xpi/1/icon.png