LightSession

Browser extension that keeps ChatGPT fast by trimming the DOM in long threads.

Browser extensionfreeglobal

LightSession is a free, open-source Firefox and Chrome extension that keeps ChatGPT fast in long conversations by trimming the page's DOM to only the last N messages, fixing the lag caused by the browser rendering every message in a long thread. It runs entirely locally with no account or server involved. It's aimed at ChatGPT users whose long-running conversations slow the browser down.

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