When Firefox connects to a secure website (the URL begins with “https://”), it must verify that the security certificate presented by the website is valid. If the certificate cannot be validated, Firefox will stop the connection to the website and show an error message.
In order to fix this issue, you must install the Netspark security certificate in the Firefox browser. Netspark is the Israeli company that created Canopy’s filtering technology.
To install the certificate follow these steps:
6. Click View Certificates and then click Import
9. Firefox browser is now safe and secure. You will be able to use it normally.
For Android devices, this process is slightly different. To use Firefox on Android, read this guide.