Examine source code of Open in Reader View

{
  "manifest_version": 2,
  "name": "Open in Reader View",
  "version": "1.1resigned1",
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{88ccace3-2bd1-4486-aec0-1ea49ea978eb}"
    }
  }
}