Better late than never: Yesterday I configured heidisql.com for the IPv6 address 2a01:488:66:1000:53a9:8f8:0:1
, additionally to the existing IPv4 address 83.169.8.248
.
My Firefox and Edge on Windows 10 have zero problems with that. However, if you encounter any problems, especially while checking for HeidiSQL updates, please report that to HeidiSQL's bug tracker.