LightSession

LightSession is a Firefox and Chrome browser extension that keeps ChatGPT fast by keeping only the last N messages in the DOM during long conversations. It is a local-only extension that trims conversation data before React renders it, with a configurable message limit of 1 to 100 and an experimental Ultra Lean Mode.

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0 shouts Added Sep 23, 2026 github.com
github.com/11me/light-session
LightSession website preview

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