Still valid in Ubuntu 16.04.1 How to reproduce (set some invalid host and port
gsettings set org.gnome.system.proxy mode 'manual' gsettings set org.gnome.system.proxy.http host 'nonexistinghost' gsettings set org.gnome.system.proxy.http port 9999 gsettings set org.gnome.system.proxy mode 'none' Expected outcome: FF will not use any proxy and any website will be normally accessible. Actual outcome: Visiting any page result in: The proxy server is refusing connections -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1229059 Title: Firefox 24 uses stale manual proxy settings when configured to use system proxy settings, and system proxy settings are set to "None" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1229059/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs