Examine source code of ScreenLife Watch Logger

{
  "manifest_version": 3,
  "name": "ScreenLife Watch Logger",
  "short_name": "ScreenLife",
  "version": "0.1.19",
  "description": "Detect completed movies and episodes and log, rate, or review them on ScreenLife.",
  "homepage_url": "https://screenlife.tv/extension",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "ScreenLife Watch Logger",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "alarms",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://screenlife.tv/*"
  ],
  "optional_host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "watch-logger@screenlife.tv",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteActivity",
          "websiteContent"
        ]
      }
    }
  }
}