Fix: SSL_ERROR_RX_RECORD_TOO

If you own and run a website then an SSL certificate must be installed. Now, if the implementation of the SSL present within the server is properly done then you can get the “SSL_ERROR_RX_RECORD_TOO_LONG” error. You can get this issue specifically on the Mozilla Firefox web browser. Here there will be information about this error and how to get rid of it.

Reasons why SSL_ERROR_RX_RECORD_TOO_LONG error can Occur

There are various reasons for the occurrence of this issue. However, here you get some of those, which are as follows.

If the Mozilla Firefox browser is not up to date, then you may get this issue.
When the extensions installed within the Firefox does not function properly, you can then get this problem also.
Sometimes, if the browser installation has some glitch, then even you can face this problem.
If the ‘security.tls.version.max’ the setting is not configured correctly, then this issue may crop up.
The active Firefox proxy can also give you this glitch.

How to resolve SSL_ERROR_RX_RECORD_TOO_LONG Firefox Issue?

You will get a plethora of methods here that will help you to rectify this error in an easy and effective way.

I: Alter the ‘HTTPS’ to ‘HTTP’

When you attempt to access your website with the ‘HTTPS’ secure protocol within the Firefox browser, then you might encounter this error. Now, the easiest solution to resolve this error is to replace the ‘https://’ at the beginning of your website to ‘http://’. Doing this will bypass the secure connection of the site and launch it without any security.

II: Clear the Cache memory of Firefox

If the data within the cache memory of the Firefox gets corrupted somehow or is full, then you can encounter the SSL_ERROR_RX_RECORD_TOO_LONG error. Now, the correct answer to resolve this problem is to clear the cache memory of Firefox. Get steps here on how can you do it as follows.

First, locate the ‘Firefox application icon on the desktop and double-click on the same. This action will open a new window having the title ‘Mozilla Firefox’.
Inside that window, find a button with “three horizontal lines” and click on it. As you click on that button, then a drop-down menu will appear.
From the menu that appears, click on the ‘Options’ item. This will open a new page, in it, go to the left panel and click on the ‘Privacy and Security’ option.
Now, move to the right side of that page and go to the ‘Cookies and Site Data’ section. Under that section, press the ‘Clear Data…’ button.
This action will open a new dialog box with the heading ‘Clear Data’. Within that dialog box, remove the checkmark from the ‘Cookies and Site Data’, but select the ‘Cached Web Content’ options and then press ‘Clear’ button.
At last, close the Firefox and restart it.

III: Deactivate Addons

If the extensions within the Firefox are corrupt then there is a possibility for you to face this problem. The correct answer to fix the ssl error issue is to disable all the addons from the browser. Here is the process on how can you do it as follows.

First, go to the upper right corner and then tap on the menu button to reveal the options of Firefox within a drop-down list.
Next, from the list that appears, locate the add-ons’ option and click on it.
As soon as you click on that option, then a new page will appear, in it, you will get a list of all the extensions installed within the Firefox.
Next, from that list, navigate to an add-on and then tap on the ‘three dots’ present on the right side to reveal the popup menu. From that menu click on the ‘Disable’ button.
This action will not completely remove the addon in question, but it will be simply deactivated.
Now, repeat the fourth step given here, in order to disable all the remaining extensions.
Once all the add-ons of the browser are inactive, next, once again click the main button and then tap on the ‘Help’ option.
When a new page appears, then find and click on the option ‘Restart with add-ons disabled’.
At last, once the Firefox loads up with all the add-ons in enabled mode, next, try to access the website and see if this issue comes up or not.

IV: Initiate Firefox in Safe Mode

‘Safe Mode’ within Firefox is a feature that allows you to open the browser with the default settings. If you open the Firefox in this mode then there is a possibility to resolve the SSL_ERROR_RX_RECORD_TOO_LONG error. To open the Firefox in ‘Safe Mode’ follow the steps below.

First, navigate to the top-right edge of the browser window and tap on the ‘three horizontal bars’. This action will reveal the drop-down list with various options.
Out of those options locate the ‘Help’ and click on the same. As you click on that option, then a list of sub-options will appear.
Now, from that list, choose the ‘Restart with Add-ons Disabled’ option. At this moment a new dialog box will appear, in it, click on the ‘Restart’ button.
After that, another dialog box will come up, in it, tap on the ‘Start in Safe Mode’ button.
Once the Firefox browser opens up, next, attempt to access the website and check if this issue is present or not.

V: Deactivate the Firefox Proxy

Sometimes due to some glitch with the proxy connection, you may encounter this issue. Now, the best answer to get rid of this issue is to disable the problematic proxy connection within the browser. The details about how to disable the proxy connection are here as follows.

First, to choose ‘Options’, navigate to the menu button of Firefox and click on it.
Now, a new page with the title ‘Options’ will come up. Inside that page, go to the bottom section ‘Network Settings’ and then click on the ‘Settings’ button.
As you click on that button, then a new dialog box will appear with the title ‘Connection Settings’.
Within that dialog box, under the heading ‘Configure Proxy Access to the Internet’, locate the option ‘No Proxy’ and put a checkmark on it.
Finally, click on the ‘OK’ button and restart Firefox.

VI: Alter the ‘security.tls.version.max’ Setting

If the ‘security.tls.version.max’ setting within the Firefox browser is not configured properly then you might face the ‘error code: SSL_ERROR_RX_RECORD_TOO_LONG’. The solution to fix this problem is to configure the ‘security.tls.version.max’ setting correctly. In order to do that, follow these steps below.

First, open the Firefox browser and then press on the ‘Ctrl + T’. This action will launch a new tab.
Next, go to the address bar and type the following URL “about:config” and press the ‘Enter’ key. As soon as you click the key, then a warning message box will appear ‘This might void your warranty!’.
Inside that box, put a checkmark on the option ‘Show this warning next time’ and then tap on the ‘I accept the risk!’ button.
As you click on that button, then a new page will appear with a list full of all the configurations of the browser.
Next, navigate to the search area above the list and input the following text “security.tls.version.max” and then a search results page will appear.
From the results page double-click on the ‘security.tls.version.max’ setting. This will open a new dialog box inside the browser having the title ‘Enter integer value’.
Within that dialog box, set the value to ‘0’ i.e zero and hit ‘OK’.
Lastly, open your website and check if you can access it or not.

VII: Perform Firefox Reset

Whenever there is an unknown glitch within the Firefox browser, then you may get a ssl_error_rx_record_too_long issue. The best possible answer to resolve this issue is to reset the Firefox browser. For that purpose, follow the steps below.

First, launch Firefox and then type the following text on the address bar – “about:support” and press the ‘Enter’ button.
As soon as you do that, then a new page will appear with a heading ‘Troubleshooting Information’.
Inside that page, go to the following section ‘Give Firefox a tune-up’. Under that section, tap on the button ‘Refresh Firefox…’.
When a confirmation dialog box appears, then, in it tap on the ‘Refresh Firefox’ button once again.
This action will relaunch the Firefox browser with no add-ons and set it to default.

VIII: Purchase a good SSL Certificate

If the SSL certificate that you have for your website is not purchased from a reliable source or has some issue within it, then this problem may appear. To resolve the ssl_error_rx_record_too_long issue the correct solution is to purchase the SSL certificate from a reliable source and then install it into the computer.

IX: Turn off the Windows Defender Temporarily

If the antivirus blocks the access to your website, then you can face with ssl_error_rx_record_too_long issue Firefox error. To solve this problem what you can do is disable the Windows Defender application. Here, you will get the steps on how to do it as follows.

First, go to the bottom left edge of the screen and tap on the ‘Windows’ logo. This action will reveal the ‘Start’ menu.
Inside that menu, above the ‘Power’ icon click on the ‘Gear’ icon. As soon as you tap on that icon, then a new window will appear with the title ‘Settings’.
Within that window, go to the bottom and tap on the ‘Update & Security’ setting category. Once you click on that category, next, a new page will appear, in it, go to the left pane and choose the ‘Windows Security’ option.
Next, move to the right side and under the ‘Protection areas’ section choose the ‘Virus & threat protection’ option. As you click on that option, then a new window will appear having the name ‘Windows Defender Security Center’.
In that window, choose the ‘Virus & threat protection’ option. At this moment, a new page will appear, in it, scroll down a little and then tap on the ‘Virus & threat protection settings’ link.’
Now, another new page will appear, in it, you will get three options. Now, among those three options, locate the one that says ‘Real-time protection’ and slide the switch to the left. This action will deactivate the above-mentioned option.
At last, launch Firefox and attempt to access your website and see if this issue comes up or not.

X: Update the Firefox Browser

If the Firefox browser is not up to date, then there is a chance for you to encounter this problem. The effective answer to solve this problem is to perform an update of the Firefox browser. To do that follow the steps below.

On the Firefox browser click on the menu button and the following options – ‘Help’ and ‘About Firefox’ respectively.
Once you tap on that option, next, a new dialog box with the heading ‘About Mozilla Firefox’ will appear.
In that dialog box, the browser will automatically look for any updates for itself. Now, if there are any updates available, then those will be downloaded and installed automatically.
When the update process is over, next, restart the Firefox and check if this error comes up or not.

XI: Reinstall the Mozilla Firefox

If all the ten methods are ineffective in resolving the SSL_ERROR_RX_RECORD_TOO_LONG issue, then as the last solution what you can do is reinstall the Firefox browser. Here are the steps to perform the re-installation.

First, press both the keys “Windows + R” together to open the ‘Run’ dialog box.
Inside that dialog box, type the following text “control panel” beside the ‘Open:’ label and then press the ‘OK’ button.
As soon as you click on that button, then a new window will appear, having the title ‘Control Panel’. In that window, find the ‘Programs’ category and click on the same.
This action will open a new page, in it, click on the ‘Programs and Features’ option. When you click on that option, next, another new page will appear with a list full of all the installed applications.
From that list, locate and select the ‘Mozilla Firefox’ application. After that, right-click on the chosen application and click the ‘Uninstall’ option.
Now, a new uninstaller window for the browser will appear, in it, follow the on-screen instructions and finally click on the ‘Uninstall’ button.
Wait for the removal process of Firefox to complete. Once the uninstallation procedure is over, next, restart the computer.
When the machine boots up, next, open the default browser and visit the official website of the Firefox and then click on the blue ‘Download Now’ button.
Now, let the setup file of Firefox to get over. Once the download process is over, next, run the setup file and follow the information accordingly and install the application.
Finally, open the Firefox browser, then visit your website and check if you get this problem or not.