Examine source code of Hide Images|Videos

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "3.1.0",
  "default_locale": "en",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "img/icon-16.png",
    "128": "img/icon-128.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "commands": {
    "hide_command": {
      "suggested_key": {
        "default": "Alt+H"
      },
      "description": "Open/Close"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "hideimages@xzonesoft.com"
    }
  }
}