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Intermittent "Network Protocol Error" on some sites.

  • 4 replies
  • 1 has this problem
  • 21 views
  • Last reply by cor-el

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Receiving "Network Protocol Error Firefox has experienced a network protocol violation that cannot be repaired. The page you are trying to view cannot be shown because an error in the network protocol was detected.

   Please contact the website owners to inform them of this problem."

When visiting some sites in Firefox 65.0.1 (64-bit) (Linux) example site: https://www.theweathernetwork.com/ which redirects me to https://www.theweathernetwork.com/ca

Issue is intermittent but very repeatable and refreshing will often allow the page to load. I was not able to trigger a similar issue in other browsers (happy to provide details if wanted)

Saw another question where a network log was asked for -I got that and can provide you with it if it'd be helpful.

Probably not important to you: I was made aware of the issue by my mom who uses Firefox 65 on MacOS.

All Replies (4)

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hi, yes a log file would be very helpful, you could send me a link to one through PM and i can forward it to a developer on the networking team.

one thing you could try to see if this fixes the intermittent problem would be this config change: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named network.http.spdy.websockets. double-click it and change its value to false and restart firefox once so that it can take effect.

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PM with link to log sent. Set network.http.spdy.websockets to false; restarted firefox and issue remains. Anything else I can provide that would be helpful?

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thanks a lot so far, i will follow up in case any more information is requested to better understand the problem or a solution becomes known!

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You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" from websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Manage Data

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window