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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Firefox is using ultrasurf browsing blocked by firewall (Firepower)

  • Akukho zimpendulo
  • 1 inale nkinga
  • 7 views
more options

Greetings,

After a recent upgrade, i noticed that i can't browse to certain website using firefox, however if I used chrome or any other browser it i can.

after troubleshooting, noticed that in firepower (firewall I am using), the requests are using "ultrasurf client" image attached. Thus application gets blocked.

Made sure I don't have any "ultrasurf" plugin / addon installed, I even tested with running firefox in safemode but still same issue.

I also noticed that when I try to load a site, the connection doesn't go to that website IP but to one of cloudflare IPs. DOH is disabled, I and blocked all Cloudflare connections on the firewall.

Has anyone noticed this with their firefox ?

Version 86 DOH Disabled Firepower detects Ultrasurf client Connections are made to Cloudflare ips (Specifically to the range 104.16.0.0/12)

Greetings, After a recent upgrade, i noticed that i can't browse to certain website using firefox, however if I used chrome or any other browser it i can. after troubleshooting, noticed that in firepower (firewall I am using), the requests are using "ultrasurf client" image attached. Thus application gets blocked. Made sure I don't have any "ultrasurf" plugin / addon installed, I even tested with running firefox in safemode but still same issue. I also noticed that when I try to load a site, the connection doesn't go to that website IP but to one of cloudflare IPs. DOH is disabled, I and blocked all Cloudflare connections on the firewall. Has anyone noticed this with their firefox ? Version 86 DOH Disabled Firepower detects Ultrasurf client Connections are made to Cloudflare ips (Specifically to the range 104.16.0.0/12)
Ama-screenshot ananyekiwe