How To Resolve the PR_CONNECT_RESET_ERROR on Mozilla Firefox 13 Fixes

If you’re reading this, you’ve likely been confronted by the perplexing, eyebrow-raising PR_CONNECT_RESET_ERROR on Mozilla Firefox. Believe me, I know the feeling – one minute you’re surfing the web without a care in the world, the next, you’re staring at an error message that might as well be written in hieroglyphics.

So, let’s roll up our sleeves and tackle this beast together, shall we? Below, I’ve compiled a list of 12 proven fixes that have served me well in my encounters with this digital gremlin.

1. Refresh Firefox

Starting off easy, the first fix is as simple as giving Firefox a quick refresh. This action restores the browser to its default settings, which often solves the problem. Just navigate to ‘Help’ > ‘Troubleshooting Information’ > ‘Refresh Firefox’.

Refresh Firefox


2. Clear Your Browsing Data

Sometimes, the solution can be as straightforward as clearing your browsing data. I found that accumulated cache and cookies could sometimes confuse our old friend Firefox, leading to the PR_CONNECT_RESET_ERROR. To clear them out, head to ‘Options’ > ‘Privacy & Security’ > ‘Cookies and Site Data’ > ‘Clear Data’.

3. Disable VPN and Proxy

If you’re using a VPN or proxy server, they could be the culprits. I’ve experienced this issue firsthand, where an unstable VPN connection resulted in the error. By disabling these services, I was able to browse again. Remember to check your internet settings as well.

Disable VPN and Proxy

4. Update Firefox

An outdated version of Firefox could cause the error. Upgrading to the latest version has sorted out the issue for me on several occasions. Click on ‘Help’ > ‘About Firefox’, and if an update is available, Firefox will automatically download it.

5. Disable Firefox Extensions

Are you using a multitude of extensions? One of them might be causing the PR_CONNECT_RESET_ERROR. Try disabling them and see if that fixes the issue. Navigate to ‘Menu’ > ‘Add-ons’ > ‘Extensions’, then disable them one by one.

Disable Firefox Extensions

6. Check Your Antivirus

Sometimes, overly zealous antivirus software can interfere with your browser. I’ve had instances where tweaking my antivirus settings resolved the error. It’s worth checking if your software has a web shield feature and considering disabling it temporarily.

7. Reset Network Settings

Resetting your network settings is like giving your internet connection a fresh start. Here’s how to do it:

  1. Press the ‘Windows’ key and ‘R’ simultaneously to open the Run dialog box.
  2. Type ‘cmd’ and press ‘Enter’. This will open the Command Prompt.
  3. In the Command Prompt, type ‘netsh winsock reset’ and press ‘Enter’.
  4. Once the command is executed, you’ll see a message saying ‘Winsock reset completed successfully’.
  5. Restart your computer to complete the process.
Reset Network Settings

8. Reinstall Firefox

Reinstalling Firefox can be an effective way to resolve persistent issues related to browser malfunctions or errors like the PR_CONNECT_RESET_ERROR. This process involves completely removing Firefox from your system and then performing a fresh installation. Here’s a step-by-step guide on how to reinstall Firefox:

  1. Backup Important Data and Settings: Before uninstalling Firefox, it’s advisable to back up any essential bookmarks, passwords, or settings that you want to retain. You can export bookmarks from the browser by going to the Bookmarks menu > Show All Bookmarks > Import and Backup > Backup.
  2. Uninstall Firefox:
    • On Windows:
      • Go to the Control Panel by typing “Control Panel” in the Windows search bar.
      • Click on “Uninstall a program” under the Programs section.
      • Locate Mozilla Firefox in the list of installed programs, right-click, and select “Uninstall.”
      • Follow the on-screen prompts to complete the uninstallation process.
    • On macOS:
      • Open the Applications folder.
      • Find Mozilla Firefox, drag it to the Trash, or right-click and select “Move to Trash.”
      • Optionally, you can also use a third-party uninstaller tool to ensure all related files are removed.
  3. Delete Firefox Profile Data (Optional): If you suspect that the issue is linked to corrupted profile data, you can manually delete the Firefox profile folder after uninstalling Firefox. The profile folder is typically located in the following directories:
    • Windows: C:\Users\YourUserName\AppData\Roaming\Mozilla\Firefox\Profiles\
    • macOS: ~/Library/Application Support/Firefox/Profiles/
    Deleting this folder will remove all profile-related data, including bookmarks, preferences, and history. If you choose this step, ensure you’ve backed up essential data from your profile beforehand.
  4. Download and Install Firefox:
    • Visit the official Mozilla Firefox website using another browser.
    • Click on the “Download Firefox” button to get the latest version of the browser compatible with your operating system.
    • Once downloaded, run the installer and follow the on-screen instructions to install Firefox on your computer.
  5. Restore Backed Up Data (If Applicable): After reinstalling Firefox, import any bookmarks or settings you previously backed up. To import bookmarks, go to the Bookmarks menu > Show All Bookmarks > Import and Backup > Restore.
  6. Update Firefox: After the reinstallation, ensure that you have the latest version of Firefox installed. To check for updates, go to the menu icon (three horizontal lines) > Help > About Firefox. If updates are available, Firefox will automatically download and install them.

Reinstalling Firefox often resolves various issues, including connection errors like PR_CONNECT_RESET_ERROR, by providing a fresh installation free from potential corruption or conflicts within the previous installation.

9. Check Firefox’s Network Settings

Incorrect network settings in Firefox can lead to the PR_CONNECT_RESET_ERROR. Here’s how to check and correct them:

  1. Open Firefox and click on the menu button (three horizontal lines on the top right corner).
  2. Go to ‘Options’.
  3. Scroll down to ‘Network Settings’ and click on ‘Settings’.
  4. In the opened window, choose ‘No Proxy’.
  5. Click ‘OK’ to confirm your changes.

10. Disable IPv6

Disabling IPv6 is a little more technical, but it can be done with a few simple steps:

  1. Type ‘about:config’ in Firefox’s address bar and press ‘Enter’.
  2. You’ll see a warning page. Click ‘Accept the Risk and Continue’.
  3. In the search bar on the next page, type ‘network.dns.disableIPv6’.
  4. You’ll see a list of settings. Click on the toggle button for ‘network.dns.disableIPv6’ to set the value to ‘true’.
Disable IPv6

11. Update Network Drivers

Outdated network drivers can cause a variety of internet issues, including the PR_CONNECT_RESET_ERROR. Here’s a step-by-step guide to updating them manually:

  1. Press ‘Windows’ key + ‘X’ and select ‘Device Manager’.
  2. Expand the ‘Network Adapters’ section.
  3. Right-click on your network adapter and select ‘Update Driver’.
  4. Choose ‘Search automatically for updated driver software’.
  5. If there’s an update available, Windows will automatically install it.

Remember, you can also use a tool like Driver Easy to automatically handle the task.

12. Restart Your Router

Lastly, let’s not underestimate the power of a good old router restart:

  1. Locate your router and find the power button. It’s usually at the back.
  2. Press the power button to turn off the router. You’ll know it’s off when all the blinking lights stop.
  3. Wait for about 30 seconds. This allows the router to fully power down.
  4. Press the power button again to turn the router back on. Wait until the lights start blinking again – this means it’s ready.
  5. Check if the error is still present.

And there you have it! Detailed, step-by-step instructions to tackle these points. Remember, patience is key. You’ve got this!

Restart Your Router

13. Contact Your ISP

If you’ve tried everything and the PR_CONNECT_RESET_ERROR is still haunting your browser, it might be time to reach out to your Internet Service Provider (ISP). There might be an issue on their end causing the problem. I’ve had a few instances where a quick call to my ISP resolved the issue swiftly.

There you have it! My personal journey through the 12 best fixes for the PR_CONNECT_RESET_ERROR on Mozilla Firefox. It’s important to remember that what works can vary from one system to another. Some of these steps might be a magic bullet for you, or it could be a combination of a few.

The key is to stay patient and methodical. After all, every problem we encounter is just an opportunity to learn something new, right? Keep that in mind, and even the most daunting error messages will seem like intriguing puzzles waiting to be solved.

Now, it’s your turn to roll up your sleeves and tackle the PR_CONNECT_RESET_ERROR. Don’t worry, you’ve got this. And remember, the world of tech is full of wonderful, helpful communities. If you’re still struggling, don’t hesitate to reach out on forums like Mozilla Support or Reddit.

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Benjamin Johnson

Hey there, I'm Ben, the tech-savvy Founder and CEO of I've dedicated my life to helping fellow Windows users optimize their PCs for peak performance. Join me on this journey as we unlock the full potential of your Windows devices together!

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