Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

Firefox generating huge traffic in one minutes

  • 2 replies
  • 0 have this problem
  • 27 views
  • Last reply by cor-el
  • Archived

As we have observed on domain - "prod.detectportal.prod.cloudops.mozgcp.net" generating 1.5 crores of request on port 53(DNS) and action is redirect here i wanted to know the services why these traffic generating within one minutes, what will the reason? what will be the counter measure?

As we have observed on domain - "prod.detectportal.prod.cloudops.mozgcp.net" generating 1.5 crores of request on port 53(DNS) and action is redirect here i wanted to know the services why these traffic generating within one minutes, what will the reason? what will be the counter measure?

All Replies (2)

You’re likely seeing high DNS traffic because of a misconfigured setting or a problematic extension. Try disabling extensions and checking your DNS settings. Also, monitor for any unusual network activity.

Mozilla rents server storage on Google Cloud servers (mozgcp.net). This specific URL seems to be about the captive portal detection.

This is about network detection done by Firefox on startup and later at regular intervals to see whether it can reach detectportal.firefox.com. See Network Detection: