Examine source code of Mouse Press Enter

{
  "name": "__MSG_extensionName__",
  "author": "Terry",
  "version": "0.1.2resigned1",
  "description": "__MSG_extensionDescription__",
  "manifest_version": 2,
  "default_locale": "en",
  "icons": {
    "16": "icon_16.png",
    "20": "icon_20.png",
    "24": "icon_24.png",
    "38": "icon_38.png",
    "48": "icon_48.png"
  },
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e96ffc48-8666-473b-8eb4-6af6d865aaa3}"
    }
  }
}