HomeFixesFixing SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error on Firefox Browser

Fixing SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error on Firefox Browser

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Accessing websites needs to be secured to prevent malicious attacks and information leakages. However, when there is a problem with the communication or transfer of data between the web browser and server, it results in the SSL handshake error.

Users who encountered the SSL handshake security problem will see the error message, “Secure Connection Failed. An error occurred during a connection to xxxxxxxx.com. SSL peer was unable to negotiate an acceptable set of security parameters. (Error Code: SSL_error handshake_failure_alert error.)”

Mozilla-Firefox-Browser
Image credit: Mozilla

How to Troubleshoot & Resolve SSL_ERROR_HANDSHAKE_FAILURE_ALERT Issue on Mozilla Firefox Web Browser

The SSL handshake error happens to all web browsers. But, most users experience the issue on their Mozilla Firefox browser. To troubleshoot the problem on your mobile device or computer, you can follow the different solutions below.

Method #1 – Perform a Power Cycle on your Devices

  • First, exit your Firefox browser and all running apps in the background.
  • Power off your device.
  • Unplug your router and modem.
  • Wait for at least 3 minutes.
  • Plug your router and modem back in and connect to the Internet.
  • Power on your device and relaunch the Firefox browser.
  • Try to re-access the same website.

Method #2 – Clear Browser Cache and Data on your Firefox Browser

  • On your Firefox browser, click Firefox.
  • Go to Preferences.
  • On the left side, select Privacy & Security.
  • Navigate to Cookies and Site Data.
  • Click Clear Data.
  • Check the box next to Cached Web Content.
  • Click the Clear button.

Method #3 – Remove the Problematic Certificate on your Firefox Browser

  • In the upper right corner, click the three-lined icon.
  • Select Settings.
  • Navigate to Privacy & Security.
  • Go to Certificates.
  • Click View Certificates.
  • Choose the Your Certificates tab.
  • Select the problematic certificates.
  • Click the Delete button.

Method #4 – Update the Version of your Firefox Browser

  • On your Firefox browser, click Firefox.
  • Choose About Firefox.
  • Wait for your Firefox browser to check and install updates if available.
  • Restart your Firefox browser.

What else did you do to resolve the SSL error on your Firefox browser? You can share your solutions with us below.

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