Examine source code of FRedditPlayer

{
  "description": "Fuck the half-ass working Reddit player.",
  "manifest_version": 2,
  "name": "FuckRedditPlayer",
  "version": "1.0.4",
  "homepage_url": "https://akiyuesleepin.me",
  "icons": {
    "96": "icons/firefox-logo-nightly.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/r/*",
        "*://*.reddit.com/u/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d081fa19-d485-479c-b294-65b02bffb856}"
    }
  }
}