Examine source code of Mastodon Share

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "{09b14d46-21c3-4a7d-b244-e756f497935b}",
      "strict_min_version": "52.0"
    }
  },
  "name": "Mastodon Share",
  "description": "__MSG_description__",
  "version": "0.7",
  "default_locale": "en",
  "options_ui": {
    "page": "options.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "assets/images/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://twitter.com/*"
      ],
      "js": [
        "assets/scripts/functions.js",
        "assets/scripts/twitter.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "assets/scripts/interceptor.js",
      "assets/scripts/functions.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "cookies",
    "tabs",
    "activeTab",
    "storage",
    "scripting"
  ],
  "icons": {
    "16": "assets/images/icon16.png",
    "32": "assets/images/icon32.png",
    "64": "assets/images/icon64.png"
  }
}