Examine source code of Play HLS

{
  "version": "1.7",
  "background": {
    "scripts": [
      "event.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon128.png",
    "default_title": "Disable"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "*://*/*.m3u8*",
        "*://*/*.ts*"
      ]
    }
  ],
  "description": "Play HLS urls in-browser",
  "icons": {
    "128": "icon128.png"
  },
  "manifest_version": 2,
  "name": "Play HLS",
  "permissions": [
    "*://*/*m3u8*",
    "*://*/*.ts*",
    "webRequest",
    "webRequestBlocking"
  ],
  "web_accessible_resources": [
    "*.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4177f3fc-4ffd-417c-8c8a-1cca7685edfb}"
    }
  }
}