Worked on the mozilla-mobile/firefox-ios repository to deliver an architecture refactor for the Native Error Page, focusing on simplifying state management and aligning the model structure with specific error types. Leveraged Swift and iOS development skills to drive the model using the ErrorPageModel enum, updating the helper, state, and view controller components accordingly. Incorporated unit testing to validate the new model path and error scenarios, ensuring improved testability and maintainability. Addressed post-review feedback to refine the implementation, resulting in a more scalable foundation for future error-handling user experience improvements while reducing overall code complexity within the error page module.