Examine source code of Cookie Sync (Gecko)

{
  "manifest_version": 2,
  "name": "Cookie Sync (Gecko)",
  "description": "Sync encrypted selected-site cookies through Supabase.",
  "version": "1.0.5",
  "permissions": [
    "alarms",
    "clipboardRead",
    "cookies",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "64": "icon-64.png",
    "96": "icon-96.png",
    "128": "icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Cookie Sync (Gecko Consumer)",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon-16.png",
      "32": "icon-32.png",
      "48": "icon-48.png",
      "64": "icon-64.png",
      "96": "icon-96.png",
      "128": "icon-128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "selected-site-cookie-sync@example.local",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'none';"
}