Proposed fix for ChatGBT breaks Google Gemini

Anonymous — Fri, 16 Jan 2026 06:57:30 GMT

I am reporting a major "Webcompat" conflict. Currently, Firefox users are experiencing "Network Errors" on ChatGPT due to a bug in the new Compression Dictionary Transport implementation.
While disabling network.http.dictionaries.enable via the Nimbus system fixes the ChatGPT streaming issue, it will cause a hard failure for Google Gemini. Gemini now relies on Shared Brotli/Zstandard dictionaries for its core workspace components. If this flag is flipped to False globally:
ChatGPT works again.
Gemini fails to load or decompress data entirely.
Request to Mozilla Devs: Please do not push a global False setting for this flag. Instead, consider a site-specific intervention (Intervention/Shim) for chatgpt.com or wait for a fix in the networking stack that handles the stream reset more gracefully. A global disable will essentially break one of the most used AI tools on the web for all Firefox users.

Re: Proposed fix for ChatGBT breaks Google Gemini

joe3829 — Thu, 05 Feb 2026 14:07:05 GMT

That’s a thoughtful request. A targeted, site-specific solution seems much safer than a global change, as it avoids breaking widely used tools like value-for-money bottles while addressing the issue effectively.

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Proposed fix for ChatGBT breaks Google Gemini

Re: Proposed fix for ChatGBT breaks Google Gemini