Did you use this: https://www.howtogeek.com/293213/how-to-configure-a-proxy-server-in-firefox/

Proxy was all setup and working correctly prior to 67.0 update, thanks.

Try to set this pref to true on the <b>about:config</b> page (#1507110). *network.proxy.allow_hijacking_localhost = true You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. *http://kb.mozillazine.org/about:config ---- *[https://bugzilla.mozilla.org/show_bug.cgi?id=1535581 Bug 1535581] - proxy settings for localhost not obeyed unless network.proxy.allow_hijacking_localhost is set (<i>please do not comment in bug reports<br>https://bugzilla.mozilla.org/page.cgi?id=etiquette.html</i>)

That took care of the issue, Thank You very much!