Mozilla Firefox proxy server is refusing Connections

I'm New to firefox and i tried connecting to the internet and this is what i got
"The proxy server is refusing connections
Firefox is configured to use a proxy server that is refusing connections.
Check the proxy settings to make sure that they are correct. Contact your network administrator to make sure the proxy server is working."
And Now i don't have access to the internet.
I'm New to firefox and i tried connecting to the internet and this is what i got "The proxy server is refusing connections Firefox is configured to use a proxy server that is refusing connections. Check the proxy settings to make sure that they are correct. Contact your network administrator to make sure the proxy server is working." And Now i don't have access to the internet.
Chosen solution
Hi, please check your connection settings.
Options tab > Advanced > Network Connection > Settings > "No Proxy" or "Use the system proxy settings"
any luck ?
thank you
Read this answer in contextSource: support.mozilla.org
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