Examine source code of anytimeNetflixPause

{
  "manifest_version": 2,
  "name": "anytimePause",
  "version": "1.1",
  "author": "Mozilla",
  "description": "Allows pausing of Netflix with space bar while next episode is loading",
  "background": {
    "scripts": [
      "anytimePause.js"
    ]
  },
  "icons": {
    "48": "icons/anytimePause-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.netflix.com/*"
      ],
      "js": [
        "anytimePause.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d349cc25-6abb-4d40-96a1-c835abe307a0}"
    }
  }
}