I recently was directed to a nice trick on how to make the Visual Studio Web Development (WebDev.WebServer.exe) server run faster when accessing it in FireFox. I’ve long noticed it seem to lag quite a bit compared to running in IE.

Basically there is something that goes wrong when FireFox tries to connected the server via IPv6. The trick is to just disable it. Unfortunately this disables it for all sites and may cause problems in the future as more places switch over to IPv6. But for now it should be just fine. Changing the setting is quite easy

Type in “about:config” in your address bar (get passed the “are you sure you want to do this” nag screen) and search for ipv6. You should find a settings like below

The setting network.dns.disableIPv6 should be set to True. All it takes is double-clicking on the setting to change it. The effects should be immediate.