SDB:Disable IPv6 for Firefox

openSUSE Support Database

Portal - SDB Categories - How to write an article

If you don't need IPv6 support turned on, here is how to disable it in Mozilla Firefox.

Before you start

• If your next question is:"What is IPv6?" then you don't need it.
  
• If the browser is used in commercial environment, then you have to ask your company's network administrator.

---

Configuration

• Type about:config in the address bar, and hit the Return or Enter key.

• Type ipv6 in the filter field.
• Highlight network.dns.disableIPv6 by right-clicking it, and change the value from false to true using Toggle.

• This will disable asking DNS for IPv6 addresses and will speed up website access if your network is not configured properly for IPv6.