Comment 1 for bug 585766

Have the same problem here after upgrading to 10.04

Solution for me is to unset no_proxy variables, no_proxy was set to "localhost,127.0.0.0/8,*.local,irc.xxxxx.de,"

And sometimes i have to change https_proxy because its set to an https://proxy url and not to an http:// url which i used in the gnome proxy settings

Also all_proxy is set to a wired socks proxy which i had never setup