By Last Updated: February 19, 2024
file error browser

Most websites utilize a protocol for establishing a secure connection. For this, they use SSL (secure sockets layers) or TLS (transport layer security). The secure connection protocol produces a safe browsing experience to users. However, it can trigger some errors that could be very frustrating for users. One of such errors is pr_end_of_file_error. It is a browser-based error and mainly associated with Mozilla Firefox. The Firefox can throw it from time to time. As a Firefox user, you need to fix it. Here are some top ways to fix pr_end_of_file_error for your assistance:

Reset the Firefox SSL Settings

Step 1: Go to the top right corner and click on the three-line menu. 

Step 2: Scroll down and choose Help. 

Step 3: Choose the option – More Troubleshooting Information. 

Step 4: Tap on the Refresh Firefox option as a new screen containing Troubleshooting Information opens. The Refresh Firefox option is under the tab of Give Firefox a Tune Up. 

Step 5: Touch the Refresh Firefox option again as a pop-up window appears.

Step 6: Wait until a new web browser opens after the closing of the existing one. 

Create a New Firefox Profile 

Step 1: Click the Ctrl, Shift, and O keys together to launch the bookmark manager. 

Step 2: Tap on the three-line menu. 

Step 3: Click on Manage Bookmarks after choosing Bookmarks. 

Step 4: Choose All Bookmarks. 

Step 5: Now choose Export Bookmarks to HTML after clicking on Import and Backup. 

Step 6: Tap on the Save option after choosing the folder to save the bookmark data as a new window opens. 

Step 7: In the address bar of Firefox, type about:profiles. After that, hit the Enter key. 

Step 8: Tap on the option – Create a New Profile. 

Step 9: Follow the instructions appearing on your screen as the Create Profile Wizard appears. 

Step 10: Click on the option – Launch Profile in New Browser – as the new profile appears in the page of the Profile Manager. 

Disable DNS over HTTPS 

Step 1: Tap on the three-line menu at the top right corner of your web browser – Firefox. 

Step 2: Go down and tap on the Settings option. 

Step 3: Move to General and go down to its window. 

Step 4: Click on Settings under the Network Settings section. 

Step 5: Scroll down the options under the Connection Settings. 

Step 6: Find the option – Enable DNS over HTTPS.

Step 7: Tap on OK after unchecking the box against Enable DNS over HTTPS. 

Turn Off Proxy or VPN 

To turn off proxy server on your Windows PC, 

Step 1: Click on the Windows icon/Start button. 

Step 2: Choose Settings and go to Network and Internet. 

Step 3: On the left panel, choose proxy. 

Step 4: Go down to the Manual Proxy Setup option.

Step 5: Drag the toggle towards the left to turn it off. The toggle is just below the option – Use a Proxy Server.  

Step 6: Restart your Windows computer to let the changes be effective. 

Step 7: Open Firefox and visit web pages on this web browser. 

To turn off a proxy server on macOS computer, you need to:

Step 1: Choose Network after launching System Preferences. 

Step 2: On the left panel, choose WiFi.

Step 3: Now, tap on the Advanced option. 

Step 4: Click on the Proxies tab to open it.

Step 5: Uncheck the box against each listed item under the option – Select a Protocol to Configure. 

Step 6: Restart your Apple computer. 

Step 7: Use the Firefox web browser to visit those sites again.  

To turn off proxy settings on the Firefox web browser

Step 1: Click on the three-line menu at the top right corner. 

Step 2: Go down and choose Settings. 

Step 3: Scroll down the options until you see the Network Settings option. 

Step 4: Tap on Settings. 

Step 5: Find Configure Proxy Access to the Internet as the Connection Settings window opens. 

Step 6: Click OK to save after checking the box against the No Proxy option.

Disable Antivirus Software for a Short Time

Step 1: Open the antivirus program you have on your device.

Step 2: Look for the option to disable it. 

Step 3: Click on the Disable/Off option to confirm your request.