Recent answers to I cannot get any proxy servers to connect to the internet at allhttps://support.mozilla.org/km/questions/13771402022-05-16T01:54:26-07:00It is possible that your firewall or other security software blocks or restricts Firefox without inf2022-05-16T01:54:26-07:00cor-elhttps://support.mozilla.org/km/questions/1377140#answer-1505542<p>It is possible that your firewall or other security software blocks or restricts Firefox without informing you, possibly after detecting changes (update) to the Firefox application.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access for Firefox and the plugin-container process and the updater process.
</p><p>See:
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<ul><li><a href="https://support.mozilla.org/en-US/kb/server-not-found-connection-problem" rel="nofollow">https://support.mozilla.org/en-US/kb/server-not-found-connection-problem</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/Firewalls" rel="nofollow">https://support.mozilla.org/en-US/kb/Firewalls</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/fix-problems-connecting-websites-after-updating" rel="nofollow">https://support.mozilla.org/en-US/kb/fix-problems-connecting-websites-after-updating</a>
</li></ul>Contact support for the proxy service you are using.
2022-05-15T19:55:03-07:00fredmcd-hotmailhttps://support.mozilla.org/km/questions/1377140#answer-1505471<p>Contact support for the proxy service you are using.
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