# Page Not Found

The URL `en-gb/extension` does not exist.

You might be looking for one of these pages:
- [Extensions](https://docs.opencart.com/developer-guide/extensions.md)
- [Installation](https://docs.opencart.com/getting-started/installation.md)
- [Theme Editor](https://docs.opencart.com/design/theme-editor.md)
- [Language Editor](https://docs.opencart.com/design/language-editor.md)
- [Events](https://docs.opencart.com/developer-guide/events.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.opencart.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.opencart.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/developer-guide/extensions.md`)
- Use `Accept: text/markdown` header for content negotiation