How to fix Network Protocol error in Mozilla Firefox?

Question

Issue: How to fix Network Protocol error in Mozilla Firefox?

Hello. While I was browsing the web through Mozilla Firefox I encountered a strange message “Network Protocol Error” seemingly out of nowhere. It is preventing me from accessing a website. What should I do?

Solved Answer

Mozilla Firefox is a free and open-source web browser created in 2002. In 2012, Mozilla was recognized as the most trusted Internet company for privacy. As of 2022, Firefox is the fourth-most popular desktop web browser after Google Chrome. However, as with many other browsers, people can encounter various errors while trying to access websites. Users report receiving a Network Protocol error in Mozilla Firefox. The full message reads as follows:

Network Protocol Error

Firefox has experienced a network protocol violation that cannot be repaired.

The page you are trying to view cannot be shown because an error in the network protocol was detected.

Please contact the website owners to inform them of this problem.

Browser errors can appear due to many reasons. Sometimes they are caused by connection problems, web address typos, and problems with the website itself. However, the Network Protocol error in Mozilla Firefox seems to be caused by cache[1] accumulation. In this guide, you will find instructions that will teach you two ways to clear the browser cache.

In such cases, a maintenance tool like ReimageMac Washing Machine X9 can be very useful. It can automatically clear cookies and cache with a click of a button, which makes the process way faster. Besides, this powerful software can fix various system errors, BSODs,[2] corrupted files, and registry[3] issues which is especially helpful. Otherwise, you can follow the step-by-step guide provided below.

How to fix Network Protocol error in Mozilla Firefox

Method 1. Reload the Website

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To fix “Network Protocol Error” or “Corrupted Content Error”, you need to reload the webpage while bypassing the cache.

  • Press Ctrl + F5 or Ctrl + Shift + R keys. It will reload the webpage fresh from the server, not from the Firefox cache

Reload the Website

Method 2. Clear the Firefox Browser

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Keep in mind that after completing this step, Firefox may sign you out of the logged-in websites.

  • Go to Edit and choose Preferences
  • Navigate to Privacy & Security tab on the left pane. Now clear the Firefox cache by clicking on the Clear Data option

Clear the Firefox Browser clear data

  • Check both Cookies and Site Data and Cached Web Content options
  • Click Clear

Clear the Firefox Browser clear

  • Close the Firefox browser and restart your system

Repair your Errors automatically

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Protect your online privacy with a VPN client

A VPN is crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speeds. The best solution for your ultimate privacy is Private Internet Access – be anonymous and secure online.

 

Data recovery tools can prevent permanent file loss

Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.

About the author
Jake Doe
Jake Doe - Computer technology geek

Jake Doe is the news editor at UGetFix. Since he met Ugnius Kiguolis in 2003, they both launched several projects that spread awareness about cybercrimes, malware, and other computer-related problems.

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