IPv.6 questions

[moonbob69]

Operating system:n/a
Browser version:all
32-bit or 64-bit browser?:both
Problem URL:n/a
Browser theme (if not default):
Installed add-ons:none
Installed plugins: (about:plugins):none

The about:config options, "network.dns.disableIPv6" (default:false) and "network.notify.IPv6" (default:true) are apparently in Firefox also, but DuckDuck doesn't find any definitions. "Disable IPv6 DNS" seems obvious enough, but what does "network.notify.IPv6" do?

Are there websites (with long-held IPv4 addresses) whose named back-end servers exist _only_ in the IPv6 space? What happens in PM for such sites when "network.dns.disableIPv6" is set True?

Besides the above settings, how does the use of IPv6 affect PM?

[therube]

Gotta ask, why are you looking to change defaults?
What are you looking to accomplish?


(Both dated at this point [so any "issues" should be less of an issue, now].)
How to enable/disable IPv6
IPv4 vs IPv6: What is the difference?

> +// Allow network detection of IPv6 related changes (bug 1245059)
> +pref("network.notify.IPv6", false);

https://bugzilla.mozilla.org/show_bug.c ... 245059#c25

[Pentium4User]

Why do you want to disable it?

[Moonchild]

Are there websites (with long-held IPv4 addresses) whose named back-end servers exist _only_ in the IPv6 space? What happens in PM for such sites when "network.dns.disableIPv6" is set True?

If they expect traffic from IPv4 resolved domains to directly connect to IPv6-only hosts, and they have not set up dual-stack or a 4-to-6 gateway for it, then those connections will fail. The exact same goes for traffic from IPv6 resolved domains directly connecting to IPv4-only hosts, if there is no dual-stack or 6-to-4 gateway when your ISP/connectivity is IPv6-only.
In other words: for servers it will be very important to have dual-stack and DNS resolution in both address spaces, or a proper address-translating gateway.

Besides the above settings, how does the use of IPv6 affect PM?

Effectively it does not affect Pale Moon as an application; Pale Moon fully supports both stacks - it will try to use IPv6 first and fall back to IPv4 if it doesn't work. You can maybe save a few milliseconds by disabling IPv6 if your ISP doesn't support it, but otherwise there's no influence.

[moonbob69]

set up dual-stack or a 4-to-6 gateway

In which case servers mentioned in scripts are available in IPv4.

So you are not aware of any highly promoted sites, expecting mostly traffic from modern phones & Windows from big ISP's (and don't care about any others) that assume their customers will be IPv6?

Are those about:config settings completely local to PM, or do they access global settings? What does "network.notify.IPv6" do?

[Pentium4User]

They are local to PM.

IPv6 works perfectly fine here and if it doesn't work fo you, fix that instead of disabling it.