this post was submitted on 24 Jul 2025
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Firefox

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What does network.http.http3.sni-slicing do in Firefox? (programming.dev)
submitted 3 months ago by ariadna@programming.dev to c/firefox@lemmy.ml
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Hi everyone,

I came across the Firefox preference network.http.http3.sni-slicing, which appears to be related to HTTP/3 and SNI handling. However, I’ve found very little documentation explaining what it actually does.

Could someone with knowledge of Firefox internals or HTTP/3 clarify:

  • What exactly does this setting change in the browser’s behavior?
  • Does it provide any privacy or security benefits?

I’d appreciate any insights. Thanks!

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