Examine source code of Andriamanitter

{
  "manifest_version": 2,
  "name": "Andriamanitter",
  "author": "Andriamanitra",
  "homepage_url": "https://github.com/andriamanitra/andriamanitter",
  "version": "2.0.0",
  "description": "Redirect twitter to a nitter instance",
  "background": {
    "scripts": [
      "nitterify.js"
    ]
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://mobile.twitter.com/*",
    "*://twitter.com/*"
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{28c227c2-a1c3-49ed-a79d-5d7e6f1edab7}"
    }
  }
}