Fix PR_CONNECT_RESET_ERROR in Windows

PR_CONNECT_RESET_ERROR is one of the common problems that you face in Mozilla browsers when trying to access some particular sites.

Normally, this means the browser was unable to establish a secure connection; for some reason, the sockets just disappeared.

This issue is usually not a big headache as it can be quickly sorted after following some troubleshooting.

In this article, we will examine what triggers the PR_CONNECT_RESET_ERROR and, tonight, a few methods that can provide it quickly.

What Does PR_CONNECT_RESET_ERROR Mean?

Generally, the error PR_CONNECT_RESET_ERROR is a network or server problem remaining connected when your browser’s process can not be completed.

Technically speaking, this means that the server initiated a reset of your original connection.

But, make sure it was still in process (before you could navigate to the website), which prompted our browser to pull up an error page instead.

What are the Common Causes?

Here are some of the factors that can trigger the PR_CONNECT_RESET_ERROR:

1. Misconfigured Proxy Settings: The incorrect or conflicting proxy settings can interrupt the integrity of connections.
2. Firewall or Antivirus Software Interference: This error can sometimes occur if overprotective firewalls or antivirus programs block access to some websites.
3. Network Configuration Issues: Connection resets are caused by issues with your router, DNS settings, and other network configurations.
4. Browser Configuration Problems: At times, this can also be triggered by various browser settings such as security protocols or other extensions.
5. Server-Side Issues: It might not even be on your end, the website sometimes may have it server down or messed up configurations.

Now that we have understood all the fundamentals let us proceed with different methods to fix the PR_CONNECT_RESET_ERROR.

How to Troubleshoot the PR_CONNECT_RESET_ERROR?

Here are some fixes that will troubleshoot the pr_connect_reset_error:

Fix 1: Clear Your Browser Cache

Whatever the problem you might be having with your browsing experience, emptying the cache allows for a fast win in many cases.

These will be the settings files you are going to use, and they will load a lot. This will sometimes cause your browser to pull new (once again out of date) data from the cache.

This is useful if you visit a site via two different connections. After which it will give you a notification to revisit the website and then rebuild the cache.

1. Firstly, close every tab in Firefox and start over.
2. On the right-hand side, click the hamburger menu, then click Settings or Options.

3. In the About: preferences window, you can manage Firefox settings and manage your preferences.
4. In this section, you’ll find the Privacy & Security tab.

5. Here, you can set several settings that affect your browsing experience and security. Click on Cookies and Site Data.
6. By default, both boxes will be checked, but you shouldn’t actually clear the Cookies and Site Data cache, so you should uncheck that box and leave the Cached Web Content box alone.

7. You can clear the browser’s cache by clicking the Clear button. You should now restart your computer and see if the PR_CONNECT_RESET_ERROR persists.

Fix 2: Use a Different Network

This is a reminder that sometimes the best solutions to difficult problems are quite simple.

If that is the case, you might get a PR_CONNECT_RESET_ERROR due to your network blocking access to (for some weird reason) the website you are trying to access.

You can check it by simply taking your phone and opening the page on mobile data in a common browser.

Try to open the site, and if it opens, then yes, there is a problem.

Contact your Internet Service Provider (ISP) and ask them to know the culprit behind this.

Fix 3: Disable Your VPN or Proxy

If you have a VPN or proxy server running, you might want to disable it to see if it’s causing the PR_CONNECT_RESET_ERROR.

1. Mac users can manage their VPN settings through System Preferences > Network.

2. To stop the VPN, click the Disconnect button. It may not be necessary to uninstall the VPN (though you always have the option to do it if necessary). Similar to extensions, you may not need to uninstall the VPN at all.
3. In Windows, you can find the VPN settings under Settings > Network & Internet.

4. On the left, you will find the VPN option.

5. You can toggle off all the relevant “on” switches on this screen.

6. To set your proxy settings on macOS, go to System Preferences > Network and click the Advanced button.

7. In the Proxies tab, uncheck every active protocol.

8. Once again, you’ll want to navigate to the Network & Internet screen, and then select Proxy from the left-hand side. After that, scroll down to the Manual proxy setup section and toggle the “Use a proxy server” option to “off”.

Fix 4: Disable IPv6 in Firefox

There are some PCs that have problems connecting to websites using the IPv6 protocol Firefox supports.

The PR_CONNECT_RESET_ERROR has also been reported to be resolved for some Mozilla Firefox users by disabling IPv6. Here’s how to disable IPv6:

1. In Firefox’s URL bar, enter about:config and hit Return.
2. To disable IPv6, enter network.dns.disableIPv6 into the Advanced Preferences tab’s search box.
3. To disable IPv6, double-click network.dns.disableIPv6.

Fix 5: Disable Windows Defender Firewall

Windows also comes with a default firewall, which can restrict access to certain websites incorrectly.

Hence, PR_CONNECT_RESET_ERROR can also occur if that security feature blocks Firefox from connecting to sites.

Fix 6: Check Your Internet Connection

If you are experiencing any connectivity issues, ensure that you have a stable internet connection.

Wi-Fi users may find it helpful to move closer to the router or use an Ethernet cable directly to connect to the router.

You may want to disable any VPN server, proxy, or client you are using and see if that fixes the problem.

Fix 7: Check Your SSL Certificate

Make sure your SSL certificates are valid and have not expired if you are using them.

You can verify the validity of a certificate by checking its expiration date and ensuring it matches the current date.

It is necessary to renew an expired certificate.

Fix 8: Disable Firefox Extensions

There is a possibility that extensions will interfere with the website’s loading. Using the menu button, choose “Add-ons and Themes“.

Click on “Extensions” and disable all extensions. If the problem persists, restart Firefox.

Disabling all extensions may fix the problem, but it is still necessary to re-enable them one at a time to identify which extension is causing the issue.

Fix 9: Contact Network Administrator

Whether you need to contact your network administrator or internet service provider for further assistance may depend on the problem you are experiencing.

It might be possible for them to identify any underlying issues with your network or server configuration and bring them to your attention.

Fix 10: Reset Firefox

You might be able to resolve the problem by resetting Firefox:

1. In the address bar, type about:support.
2. In the pop-up box, click on “Refresh Firefox” again or click “Refresh Firefox” again on the right side of the page.

So, that’s all we have for you on how to fix the pr_connect_reset_error. We hope that this guide has helped you. But, that’s not the end. You can comment below and let us know.