How to Fix ssl_error_rx_record_too_long Firefox Error?

If you exercise Mozilla Firefox as your default browser, then might have encountered SSL error similar to “ssl_error_rx_record_too_long”.

This SSL error message can discontinue users from accessing the website and might pop-up unexpectedly.

To maintain your computer safer, web browsers prevent showing the website with these unexpected errors.

On the other hand, there is a number of short-term solutions like refresh your page or try safe mode etc.

What is ssl_error_rx_record_too_long error?

If you are encountering this error code, it means your web browser can’t authenticate the secure data, which is usually due to an SSL certificate that isn’t properly installed.

How to fix ssl_error_rx_record_too_long in Firefox?

Attempt HTTP: It’s a trouble-free way out to stay away from this error. You can make an effort to access the same website without HTTPs protocol.

However, it is not a “nice feature” but could fix this error & has proved functional to many users. If you still encounter the issue, try next solution-

No proxy setting

To fix this SSL error, disable proxy for Firefox. Usually, Mozilla Firefox uses your system-wide proxy settings by default.

You could also use this solution to fix SSL error. If you need to No proxy setting, here is the guide-

• Open the menu and select Options.

• Go to the Network Proxy section.

• Select Settings. Go to the Configure Proxy access to the Internet section and select the No proxy option.

• Click OK.
• Then restart your browser.

Update Firefox

Many times, you can face this problem due to out-of-date Firefox browser.

In many cases, your outdated browser is not able to unlock the website. Make sure your web browser is up-to-date with the latest available update.

Disable Antivirus

If you still see the ssl_error_rx_record_too_long error, it’s time to put out of action your antivirus program.

Some antivirus software builds a layer between your browser and the web which can the foundation of such SSL issues.

Open Firefox in safe mode

1. Click the menu

2. Click Help and select Restart with Add-ons Disabled….

3. Firefox will start up with the Firefox Safe Mode dialog

4. When the Firefox Safe Mode window appears, 

5. Press the button, Start in Safe Mode.

Turn Off Firefox Add-ons

Of course, Add-ons can cause such SSL errors.

A few add-ons connecting to web servers are probably causing the SSL error.

1. Click the menu
2. Choose Add-ons
3. Select Extensions in the left hand sidebar
4. Choose disable option.
5. Repeat the same step for every extension you want to get rid of.

Refresh the Browser

If still facing the SSL error, resetting the Firefox browser to the default setting can help.

Here is the guide to refresh your browser-

1. Click the menu

2. Click on Help

3. Click “Troubleshooting Information”.

4. Click on “Refresh Firefox”

5. Confirm the selection.

6. At last, click on Finish

Set security.tls.version.max to 0

Pull off following steps to set security.tls.version.max to 0

• Launch your Firefox browser. Open a new tab.
• Type about:config into the Firefox URL bar. Press the Enter key.
• If you get a warning message, click I accept the risk.
• Go to the Search area and type ‘security.tls.version.max’ (without quotes).
• Double-click security.tls.version.max when it appears in the list of results.
• The Enter integer value window will open. Input 0 and click OK.

Use a VPN

VPN technology allows you to access a blocked website by encrypting your internet connection.

A VPN can solve the ssl_error_rx_record_too_long Firefox problem for many users.

More Resources:

How to Fix “This Site Can’t Provide a Secure Connection” Error?

How to Solve ERR_SSL_VERSION_INTERFERENCE?