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for some websites I get a message that says 'Bad Request" but I can access this website if I log in as a guest user on my PC or from my laptop

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for some websites I get a message that says 'Bad Request" but I can access this website if I log in as a guest user on my PC or from my laptop. How do I fix this? Thank you

for some websites I get a message that says 'Bad Request" but I can access this website if I log in as a guest user on my PC or from my laptop. How do I fix this? Thank you

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  • "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
  • "Remove the Cookies" from sites that cause problems: Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See: