Examine source code of Quick Format Switcher

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.1",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "__MSG_extensionName__"
  },
  "web_accessible_resources": [
    "icons/*.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1da6dcfd-2525-248e-b35a-bc5fd81b7ae8}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_data": false
      }
    }
  }
}