Oct 26

Written by: Soul Solutions
Friday, 26 October 2007 

johnWeeGo.jpgHaving just built a new computer I have to share this tip for anyone doing cross browser testing and finding firefox really slow to load your pages and assests.

http://weblogs.asp.net/dwahlin/archive/2007/06/17/fixing-firefox-slowness-with-localhost-on-vista.aspx

"It turns out that the slowness is caused by an IPv6 issue with DNS and can easily be resolved by turning IPv6 support off in Firefox while doing localhost testing.  To make the change, type about:config in the address bar, locate the network.dns.disableIPv6 setting and double-click on it to set it to true.  This does the trick for the Firefox localhost issue on Vista and everything is running fast again."

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1 comment(s) so far...

Re: Incredibly slow FireFox on localhost fix - turn of IPv6

Hugely useful tip. Makes an enormous difference. I'd even started initial testing against IE on my dev server because of the delay. Back to firefox - excellent! (and it only took 16 months to get you a comment on your fix)

By Rich Hildyard on   Friday, 6 February 2009

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