Examine source code of Twitter Hashtag Hiders

{
  "manifest_version": 2,
  "name": "Twitter Hashtag Hider",
  "version": "1.0",
  "description": "Hide trending hashtags on Twitter for a cleaner browsing experience.",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://twitter.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a3fb377a-22c8-4727-8f71-734303f828e2}"
    }
  }
}