LightSession Pro for ChatGPT is a Firefox extension designed to enhance the performance of ChatGPT by addressing lag and slow response times. This local-only tool optimizes the user experience by automatically trimming older messages from the chat interface, ensuring that the conversation remains responsive. Users can configure the number of visible messages, choosing from 1 to 100, while the extension efficiently manages the page DOM to maintain optimal performance.

The extension operates seamlessly in the background, only processing data locally without any external network requests, ensuring user privacy and security. With a simple popup interface, users can easily enable or disable the extension and refresh their chat history whenever needed. LightSession Pro is open-source, allowing for community involvement and transparency in its development.