SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error Fix Firefox

Hi guys, In this post I will guide you how you can fix SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error in your Firefox browser.

Firefox is the best secure web browser that includes a range of features to protect users against online threats and protect their privacy. Some of these features include Phishing and Malware Protection, which warns users when they visit a potentially malicious website, and Block Dangerous and Deceptive Content, which blocks websites that are known to be deceptive or potentially harmful. Firefox also uses certificate pinning to help protect against man-in-the-middle attacks, and it includes sand-boxing to isolate websites from each other and from the rest of the operating system.

SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error Causes

Firefox is a popular web browser that is known for its security features and privacy protections. Some of the key security features of Firefox include:

Phishing and Malware Protection: Firefox includes a feature called “Phishing and Malware Protection” that warns users when they visit a potentially malicious website. This feature is enabled by default, and it uses data from the Google Safe Browsing service to identify known malicious websites.
Block Dangerous and Deceptive Content: Firefox also includes a feature called “Block Dangerous and Deceptive Content” that blocks websites that are known to be deceptive or potentially harmful. This feature is also enabled by default.

Certificate pinning: Firefox uses certificate pinning to help protect against man-in-the-middle attacks. Certificate pinning allows Firefox to “pin” the certificate of a trusted website, so that if an attacker tries to intercept the connection between the user and the website, Firefox will be able to detect the interception and warn the user.
Sandboxing: Firefox uses sand-boxing to isolate websites from each other and from the rest of the operating system. This helps to prevent websites from being able to access sensitive information or resources on the user’s device.
Content Security Policies: Firefox also supports content security policies, which allow websites to specify what types of content and scripts are allowed to run on their pages. This helps to prevent websites from running malicious code or loading dangerous content.

Fix SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error Fix Firefox Issue

The SSL handshake error possible can happens to any web browsers. But in most cases SSL_ERROR_HANDSHAKE_FAILURE_ALERT error usually occur in Firefox. In order to troubleshoot the problem you can follow below procedure.

#1) Power Cycle Reset

To perform a power cycle in Firefox, you can try the following steps:

Close all open tabs and windows in Firefox.

Exit Firefox by clicking on the “File” menu and selecting “Exit” or by clicking on the “X” icon in the top right corner of the Firefox window.
Restart your computer.
Open Firefox again by double-clicking on the Firefox icon or by selecting it from the start menu.

This process will power cycle Firefox, which can sometimes help to resolve issues with the browser or the computer. It is a good idea to perform a power cycle if you are experiencing problems with Firefox or if you have recently installed updates or made changes to your computer’s settings.

If you continue to experience issues after performing a power cycle, you may want to try other troubleshooting steps, such as clearing your cache and cookies or disabling extensions. You can also try restarting your router or modem, as network issues can sometimes cause problems with web browsers.

#2) Clear Browser Data, History and Cache

To clear your Firefox browser data and history, follow these steps:

Open Firefox and click on the “Menu” button (the three horizontal lines in the top right corner of the window).
From the menu, select “Options”.
In the “Options” window, click on the “Privacy & Security” tab on the left side of the window.

Scroll down to the “Cookies and Site Data” section.
Click on the “Manage Data” button.
In the “Manage Cookies and Site Data” window, you can select the specific data that you want to remove. To clear all data, click on the “Remove All Data” button.

In the “Confirm Clear All Data” window, click on the “Clear” button to confirm that you want to delete the selected data.
Close the “Options” window and restart Firefox.

If Secure connection Failed Firefox bypass issue appears because you visit to unsecured page then this issue will be fixed now.

#3) Update your Firefox Browser to Latest Version

To update Firefox to the latest version, follow these steps:

Open Firefox and click on the “Menu” button (the three horizontal lines in the top right corner of the window).
From the menu, select “Help” and then click on “About Firefox”.

In the “About Firefox” window, Firefox will check for updates and start downloading the latest version if one is available.
Once the update has finished downloading, click on the “Restart to Update Firefox” button to install the update.
Firefox will close and then reopen with the latest version installed.

If you are unable to update Firefox through the above method, you can also try the following:

Download the latest version of Firefox from the official Mozilla website: Link
Close Firefox and install the downloaded update.

Open Firefox and the update should be installed.

Note that some updates may require you to restart your computer before they can be installed. It is also a good idea to make sure that you have the latest version of your operating system installed, as this can sometimes be required in order to update Firefox.

We are hopeful that after performing above mentioned steps your browser issue SSL_ERROR_HANDSHAKE_FAILURE_ALERT Firefox client certificate now fixed.