Examine source code of My Weather Bookmarks

{
  "manifest_version": 2,
  "default_locale": "en",
  "name": "__MSG_manifestAppName__",
  "description": "__MSG_manifestAppDescription__",
  "version": "1.1.0",
  "author": "trc",
  "icons": {
    "16": "img/icon_16.png",
    "32": "img/icon_32.png",
    "48": "img/icon_48.png",
    "64": "img/icon_64.png",
    "128": "img/icon_128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "img/icon_16.png",
      "32": "img/icon_32.png",
      "48": "img/icon_48.png"
    },
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "bg.js"
    ],
    "persistent": true
  },
  "permissions": [
    "https://www.lachainemeteo.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{14908da6-dda9-45b3-bb7e-1f7da0687223}"
    }
  }
}