Research Academy
My account Customers About Blog Careers Legal Contact Resellers

Burp Suite User Forum

Create new post

Error "Secure Connection Failed" on Firefox

Nikhil | Last updated: Jun 16, 2020 09:54AM UTC

please help me ASAP ..... When i am connecting proxy and port to 127.0.0.1 and port 8080* (127.0.0.1.8080) as the proxy suitable for burp in Firefox I am getting an error An error occurred during a connection Peer’s certificate has an invalid signature. Error code: SEC_ERROR_BAD_SIGNATURE

Hannah, PortSwigger Agent | Last updated: Jun 16, 2020 10:00AM UTC

Hi Have you installed the Burp certificate into Firefox's trusted certificates? If not, you can find instructions here: https://portswigger.net/support/installing-burp-suites-ca-certificate-in-your-browser

Hilton | Last updated: Mar 10, 2022 09:09PM UTC

I did but it still wont work

Ben, PortSwigger Agent | Last updated: Mar 11, 2022 08:07AM UTC

Hi Hilton, Are you able to provide us with some details of the specific issue that you are facing so that we can assist you further with this?

Trinity | Last updated: Aug 06, 2022 06:48PM UTC

hey ive been going through the same it doesnt let me connect through...

Ben, PortSwigger Agent | Last updated: Aug 08, 2022 07:17AM UTC

Hi Trinity, Are you able to provide us with some further information regarding the exact issues that you are experiencing so that we can assist you further?

Nischal | Last updated: Aug 11, 2022 09:15AM UTC

Checked everything that I could find in portswigger regenerate certificate use previous version of firefox none of them worked even export der also not working just Software is Preventing Firefox From Safely Connecting to This Site Please dont tell to reinstall certificate again I am using windows 11.

Michelle, PortSwigger Agent | Last updated: Aug 11, 2022 10:45AM UTC

Can you email some screenshots or a screen recording to support@portswigger.net so we can take a closer look at what's happening here for you?

Yash | Last updated: Aug 06, 2023 11:45PM UTC

please help me ASAP ..... When I am connecting proxy and port to 127.0.0.1 and port 8080* (127.0.0.1.8080) as the proxy suitable for burp in Firefox I am getting an error

Michelle, PortSwigger Agent | Last updated: Aug 07, 2023 07:32AM UTC

Hi What error do you see? Is the error displayed in Firefox or Burp? Do you see the same error if you use Burp's embedded browser instead of Firefox?

You must be an existing, logged-in customer to reply to a thread. Please email us for additional support.