Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I keep getting "Network Protocol Error" despite emptying the cache as recommended. I am running WIN10 on a HP desktop PC

  • 3 replies
  • 1 has this problem
  • 5 views
  • Last reply by philipp

more options

I have emptied the cache as advised a number ot times but the error message persists. It is also accompanied by cannot find the server message. I am running WIN10 on a devolo network with BT as ISP.

All Replies (3)

more options

What site are you connecting to? Also this sounds more like Windows O/S issue not related to the Browser.

Modified by WestEnd

more options
more options

hi geoff, there are a couple of similar other user reports, so we are looking into the issue in https://bugzilla.mozilla.org/show_bug.cgi?id=1528317.

are you able to trigger the error message somewhat reliably with particular steps? if so, could you please capture a http log while the problem is occurring which would help mozilla's developers understand what's going on and how to fix it: https://developer.mozilla.org/en-US/docs/Mozilla/Debugging/HTTP_logging#Using_aboutnetworking

(it would probably best if you upload the log via https://send.firefox.com/ and send me a private message here on the support site with the link you've received there )