Examine source code of Video Skipper

{
  "manifest_version": 2,
  "name": "Video Skipper",
  "version": "1.0",
  "description": "根据剧名自动跳过片头片尾",
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": "icons/play.png"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "unlimitedStorage",
    "scripting",
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content_scripts/inject.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a22bc53e-6849-40d7-be5a-4afaf590970f}"
    }
  }
}