Examine source code of mobileTwitter Redirect

{
  "name": "mobileTwitter",
  "short_name": "mobileTwitter",
  "description": "This extension makes your browser load twitter content from mobile.twitter.com instead of twitter.com",
  "version": "1.0.1resigned1",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/mobileTwitter_icon_19.png"
  },
  "icons": {
    "16": "icons/mobileTwitter_icon_16.png",
    "19": "icons/mobileTwitter_icon_19.png",
    "38": "icons/mobileTwitter_icon_38.png",
    "48": "icons/mobileTwitter_icon_48.png",
    "128": "icons/mobileTwitter_icon_128.png"
  },
  "permissions": [
    "*://twitter.com/*",
    "webRequest",
    "webRequestBlocking"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf5f1fe5-50bc-4fd3-8f6e-d4cff14cf474}"
    }
  }
}