Firefox update and download installer from ftp.mozilla.org are extremely slow recently

[tom25519]

Hello, I live in China and Firefox update and download installer from ftp.mozilla.org are extremely slow recently!!!

[tom25519]

I guess I find the reason: ftp.mozilla.org was using Google cloud before, but recently it change to fastly:

nslookup ftp.mozilla.org
DNS request timed out.
    timeout was 2 seconds.
服务器:  UnKnown
Address:  fe80::1

非权威应答:
名称:    mozilla-download.fastly-edge.com
Addresses:  2a04:4e42:1a::787
          151.101.111.19
Aliases:  ftp.mozilla.org

https://community.fastly.com/t/fastly-cdn-is-very-slow-in-china/2571