Firefox error ssl_error_illegal_parameter_alert

If you are having issues with Firefox then you might encounter the error code Firefox ssl_error_illegal_parameter_alert when you try to access your account information or when you try to search something on Firefox. This error can be annoying and frustrating because you cannot access your account properly or you cannot log into your account on Firefox anymore.

The problem can be caused by a server error or a network error but sometimes other applications are interfering with the proper functioning of Firefox on your computer. This can be caused by a virus or a malware that is installed on your computer. To fix this error, you need to try a few solutions.

The Firefox ssl_error_illegal_parameter_alert usually happens when the users want to access a certain website and they failed to process. The Firefox can not reach the website and shows this error.

You can try to run Firefox on the Safe Mode. You need to do it through Firefox Menu > Help >  Restart with Add-ons Disabled > Wait until it finishes. If the Firefox is not running, you can try the keyboard combination key. For Windows users, you can hold SHIFT key and Option key for MacOS users. Then, when the dialog box appears, you need to click “Start in Safe Mode”.

You can also check your browser extension. Some of your extensions prevent the FIrefox from accessing several websites. You can do it by clicking Firefox Menu > Add-ond and Theme > Extensions > Click the blue toggle for the extension you wish to disable. It is better to turn off all of the extensions to make sure you can access the website.

Lastly, you can set the security.tls.version.min and security.tls.version.max prefs to 0. You can do it by writing about:config in the Location Bar and press Enter to display the list of preferences. Then edit the list.