Examine source code of RTL Fixer

{
  "manifest_version": 2,
  "name": "RTL Fixer",
  "version": "1.0",
  "description": "Fix RTL text alignment on specific websites.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a6bd9f8b-e205-44ee-b591-5afef7b5ba87}"
    }
  }
}