Examine source code of Youtube Links

{
  "manifest_version": 2,
  "name": "Youtube Links - Inotepad",
  "version": "1.1",
  "author": "truyentdm",
  "description": "Small utility to save your favorite youtube links",
  "homepage_url": "https://www.inotepad.cloud/",
  "icons": {
    "48": "icons/beasts-48.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/beasts-32.png",
    "default_title": "Youtube Links",
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8654a556-443a-4450-81b1-5663075e23c3}"
    }
  }
}