Examine source code of NoSuggReels

{
  "manifest_version": 2,
  "name": "NoSuggReels",
  "version": "1.1",
  "description": "Removes all 'Suggested for you', 'Reels', 'Sponsored' posts from Facebook feed.",
  "author": "Shahriar Ahmed Shovon",
  "homepage_url": "https://github.com/shahriar-programmer/nosuggreels",
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "<all_urls>"
  ],
  "icons": {
    "48": "icon.png",
    "96": "icon.png"
  },
  "browser_action": {
    "default_title": "Options",
    "default_popup": "options/options.html",
    "default_icon": {
      "16": "icon.png",
      "32": "icon.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.facebook.com/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d1d35b31-fc4b-466d-bf17-e4a24d05574d}"
    }
  }
}