Examine source code of Not for You

{
  "manifest_version": 3,
  "name": "Not for You",
  "description": "Removes algorithmic and suggested content from social media sites.",
  "version": "1.0.1",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png",
    "512": "icon/512.png"
  },
  "homepage_url": "https://notforyou.app",
  "permissions": [
    "storage",
    "declarativeNetRequest",
    "alarms"
  ],
  "host_permissions": [
    "*://www.youtube.com/*",
    "*://youtube.com/*",
    "*://www.instagram.com/*",
    "*://instagram.com/*",
    "*://x.com/*",
    "*://twitter.com/*",
    "*://www.tiktok.com/*",
    "*://tiktok.com/*",
    "*://www.facebook.com/*",
    "*://facebook.com/*",
    "*://www.reddit.com/*",
    "*://reddit.com/*",
    "*://www.linkedin.com/*",
    "*://linkedin.com/*",
    "*://www.threads.com/*",
    "*://threads.com/*",
    "*://www.threads.net/*",
    "*://threads.net/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@notforyou.app",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Not for You",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://facebook.com/*",
        "*://www.facebook.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/facebook.js"
      ]
    },
    {
      "matches": [
        "*://instagram.com/*",
        "*://www.instagram.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/instagram.js"
      ]
    },
    {
      "matches": [
        "*://linkedin.com/*",
        "*://www.linkedin.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/linkedin.js"
      ]
    },
    {
      "matches": [
        "*://reddit.com/*",
        "*://www.reddit.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/reddit.js"
      ]
    },
    {
      "matches": [
        "*://threads.com/*",
        "*://threads.net/*",
        "*://www.threads.com/*",
        "*://www.threads.net/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/threads.js"
      ]
    },
    {
      "matches": [
        "*://tiktok.com/*",
        "*://www.tiktok.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/tiktok.js"
      ]
    },
    {
      "matches": [
        "*://twitter.com/*",
        "*://x.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/twitter.js"
      ]
    },
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://youtube.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/youtube.js"
      ]
    }
  ]
}