Examine source code of Discord Links2Clip

{
  "manifest_version": 2,
  "name": "Discord Links2Clip",
  "version": "1.5",
  "description": "An extension to copy and download media links from Discord.",
  "icons": {
    "16": "icons/logo.png",
    "32": "icons/logo.png",
    "48": "icons/logo.png",
    "64": "icons/logo.png"
  },
  "browser_action": {
    "default_icon": "icons/logo.png",
    "default_title": "Discord Links2Clip",
    "default_popup": "popup.html"
  },
  "author": "Known Black Hat",
  "homepage_url": "https://github.com/KnownBlackHat/Firefox-Discord-Media-Extension",
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://discord.com/channels/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "knownblackhat@gmail.com"
    }
  }
}