Examine source code of 勤劳的小蜜蜂（采集视频/音乐/图片/自定义文件/视频录制/视频截图）

{
  "author": "今晚上山打老虎",
  "name": "勤劳的小蜜蜂（采集视频/音乐/图片/自定义文件/视频录制/视频截图）",
  "description": "勤劳的小蜜蜂自动采集网页上的视频文件、音频文件、图片文件、其它自定义类型文件等；支持视频录制、支持视频截图;",
  "manifest_version": 2,
  "version": "1.6.4",
  "homepage_url": "http://qldxmf.lhyhq.cn/",
  "icons": {
    "48": "/public/icon48.png",
    "128": "/public/icon128.png"
  },
  "browser_action": {
    "default_title": "勤劳的小蜜蜂",
    "default_popup": "popup.html"
  },
  "permissions": [
    "webRequest",
    "tabs",
    "storage",
    "unlimitedStorage",
    "downloads",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "service.js"
    ]
  },
  "web_accessible_resources": [
    "/public/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "active.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://xmf.lhyhq.cn/*",
        "*://qldxmf.lhyhq.cn/*",
        "http://localhost:3900/*"
      ],
      "js": [
        "transfer.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "media_recorder.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5d20a01e-5256-4932-8044-4208bdbdcf78}"
    }
  }
}