HomeFixesFixing SSL_ERROR_HANDSHAKE_FAILURE_ALERT Error on Firefox Browser




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.)”

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.


More From

How to Fix Discovery Plus App Keeps Stopping, Pausing or Crashing Issue

Streaming on Discovery Plus gives you access to shows from TLC, Food Network, HGTV, Discovery, and more. But some users complained that their Discovery...

How to Fix ERR_ADDRESS_UNREACHABLE Issue on Google Chrome Browser

Are you seeing the ERR_ADDRESS_UNREACHABLE error code when you browse and load websites on your Google Chrome browser? Many users encounter the ERR_ADDRESS_UNREACHABLE error...

How to Fix Twitter “Oops, Something Went Wrong, Try Again” Login Error

Twitter is one of the most widely-used social media platforms in the world. Millions of users access the app and website several times each...

How to Enable PDF Read Aloud Feature in Microsoft Edge

Reading aloud is a learning tool that helps students learn how to say the correct pronunciation of the words and how to properly use...


Please enter your comment!
Please enter your name here

Recent Articles

Stay Connected