Examine source code of m3u8-catcher

{
  "manifest_version": 2,
  "name": "m3u8-catcher",
  "description": "Catch and save m3u8 video file",
  "version": "0.0.1",
  "icons": {
    "64": "icons/icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icons/icon.png",
    "default_title": "m3u8-catcher"
  },
  "permissions": [
    "webRequest",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0cae0419-bcc4-4e29-a24b-72fdf5f8158e}"
    }
  }
}