Examine source code of SecureBale E2EE

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "securebale@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "name": "SecureBale E2EE",
  "version": "1.0",
  "description": "Adds seamless, client-side End-to-End Encryption (E2EE) to Bale Messenger (web.bale.ai).",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.bale.ai/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}