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Failure: Error Code: NS_ERROR_OFFLINE while connected to fiber gigabit ethernet, no wifi at all, and very low latency/high bandwidth connection

Firefox Error codes
jbr replied
cmccane
cmccane

Getting around 20ms for DNS lookups so thats not the issue. Why do I see Error Code: NS_ERROR_OFFLINE maybe once every several days when this Firefox has never been in offline mode and never will be? Env is MacOS 26.5.2 with current Firefox installed.

Getting around 20ms for DNS lookups so thats not the issue. Why do I see Error Code: NS_ERROR_OFFLINE maybe once every several days when this Firefox has never been in offline mode and never will be? Env is MacOS 26.5.2 with current Firefox installed.

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jbr
jbr
  • Top 10 Contributor

And is it just a fluke and on refresh everything works, or that's a state the browser gets stuck in… incl. things like Sync appearing offline, About Firefox not being able to check for updates…; all other tabs, streaming or downloads stop etc.?

Modified by jbr

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