Grammarly, LLM code assistants, etc tell you upfront that this is happening and the type of info sent over is at least somewhat constrained. 'Everything I do in the browser, to multiple internet strangers' is a much bigger hurdle, especially without clear information. I think you need to figure out some way to safely demonstrate this to (informed) users - as it is, it feels far too iffy to even try which somewhat defeats the purpose of a Show HN.