Examine source code of Video ID Collector Mobile

{
  "manifest_version": 2,
  "name": "Video ID Collector Mobile",
  "version": "1.4.5",
  "description": "Firefox Android Video ID Collector with editable search title and one-tap Find & Fill for loaded Vidmoly, StreamTape and MixDrop pages.",
  "permissions": [
    "tabs",
    "storage",
    "https://vidmoly.me/*",
    "https://streamtape.com/*",
    "https://mixdrop.ag/*",
    "https://dramamist.com/*",
    "https://kisskh.space/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Video ID Collector",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://vidmoly.me/user/files*"
      ],
      "js": [
        "content_scripts/host_content.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://streamtape.com/*"
      ],
      "js": [
        "content_scripts/host_content.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://mixdrop.ag/panel*"
      ],
      "js": [
        "content_scripts/host_content.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://dramamist.com/wp-admin/post.php*",
        "https://dramamist.com/wp-admin/post-new.php*",
        "https://kisskh.space/wp-admin/post.php*",
        "https://kisskh.space/wp-admin/post-new.php*"
      ],
      "js": [
        "content_scripts/wp_content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "video-id-collector-mobile@dramamist.local",
      "strict_min_version": "120.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}