Mozilla Firefox users reported they come across thePR_CONNECT_RESET_ERRORwhen trying to connect to a website server.
The request is declined and they dont know what to do to fix the problem.
This post introduces the online grid protocol error Firefox and several useful ways to settle down the issue.

It attracts many users since its free and open-source.
However, just like other browsers, a series of problems could occur on Firefox.
ThePR_CONNECT_RESET_ERRORis one of them.
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The request gets denied and a Secure Connection Failed window pops up to stop users from accessing the page.
Secure Connection Failed
An error occurred during a connection to *.

PR_CONNECT_RESET_ERROR
you’re able to hit theTry Againbutton to give it a second chance.
And you are advised to check theReport errors like this to help Mozilla identify and block malicious sitesoption.
MiniTool Solutionoffers a lot of good ideas on data recovery and disk management.

There are many reasons that can be responsible for the secure connection failed issue.
But luckily, it can be fixed with different methods.
How to Fix Secure Connection Failed
Fix 1: clear cache.

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Fix 2: uninstall the third-party firewall.
Fix 3: disableVPN or proxy.