local ipv6 addresses not recognized

[lufebe16]

I'm accessing an own webservice on the local lan. The server is reachable at fix addresses 192.168.1.25 (ipv4) and fc01::105 (ipv6). In earlier versions of firefox (~68) I bookmarked: http://[fc01::105]:8082/image for it. On the newest version and even on the newest beta the call results in a weired google search result page, instead of the request service.

(On the newest beta an access was possible under the ipv4 local address, such as http://192.168.1.25:8082/image.).

This is a request to support local ipv6 addresses too.

┆Issue is synchronized with this Jira Task

[cadeyrn]

Duplicate of #4343.