It is not possible to enter internet information in the Advanced > Network > How Firefox connects to the internet> Settings... When you click on "Auto-detect proxy settings for this network" that option is greyed out. Auto detect detects the system configuration. Please make sure that the system proxy configuration is set up correctly.

If you have any other questions, please do not hesitate to ask.

See also:

• http://kb.mozillazine.org/network.proxy.type
• http://kb.mozillazine.org/Network.proxy.autoconfig_url

• http://kb.mozillazine.org/Network.proxy.%28protocol%29
• http://kb.mozillazine.org/Network.proxy.%28protocol%29_port