Firefox uses its own certificate store rather than the operating system's store, so you must import it directly.
Secure websites use TLS to verify server identity. Because Burp Suite intercepts this connection to show you the raw requests, Firefox will normally flag it as a security risk. By installing the certificate, you tell Firefox to trust the certificates Burp generates on the fly for every site you visit. Troubleshooting Common Issues Installing Burp's CA certificate in Firefox - PortSwigger download burp suite certificate for firefox
Click the button in the top-right corner of the "Welcome to Burp Suite" page. Firefox uses its own certificate store rather than
Save the cacert.der file to a known location on your computer. 3. Import the Certificate into Firefox download burp suite certificate for firefox
In Firefox, open the menu and go to Settings .