Examine source code of Youtube Comment Filter

{
  "manifest_version": 2,
  "name": "Youtube Comment Filter",
  "author": "Cawdabra",
  "homepage_url": "https://github.com/Abracawdabra/Youtube-Comment-Filter",
  "description": "Comment filter or word censor for Youtube comments.",
  "version": "1.1resigned1",
  "icons": {
    "48": "icon-48.png"
  },
  "applications": {
    "gecko": {
      "id": "youtubecommentfilter@addon.tld"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "*://*.youtube.com/*",
    "storage",
    "tabs",
    "webNavigation"
  ]
}