Ipv6 issues with Brave

I will reuse the problem description from user [pjnsmb] which is still relevant. I have edited it a little and updated info regarding browser version etc. to make it reflect my own today’s situation.

Description of the issue:
On brave browser I scored 16/20 on this website check for ipV6 use :


Screenshot 2022-03-04 144819
Screenshot 2022-03-04 144709

How can this issue be reproduced?

  1. Reset all browser settings
  2. Turn off all extensions
  3. Remove cookies
  4. Restart browser

Expected result:

Nothing I have tried will improve my score

Brave Version( check About Brave ):

1.36.109 Chromium: 99.0.4844.51 (Official Build) (64-bit)

Windows 11 64-bit version:

21H2 build 22000.527


  1. How can I make Brave use ipv6 as default?
  2. My firewall does not prevent ICMPv6. Why does Brave prevent it and how can I change that?