Examine source code of Scroll and Find

{
  "manifest_version": 3,
  "name": "Scroll and Find",
  "version": "1.9",
  "description": "Scrolls and searches pages, and prevents automatic X Home refreshes when returning to a tab.",
  "browser_specific_settings": {
    "gecko": {
      "id": "scrollfindextension@example.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Scroll and Find",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com/*"
      ],
      "js": [
        "x-focus-guard.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://x.com/*"
      ],
      "js": [
        "x-settings-bridge.js"
      ],
      "run_at": "document_start",
      "world": "ISOLATED"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}