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Error in Browser and Burp suite-The proxy server is refusing connections

anonymous | Last updated: Jun 29, 2018 03:13PM UTC

Hello support team, i am using Mozila firefox 61.0 (64-bit) and i tried many times to run many types of websites on it for burp suite intercept use. i have configured all settings properly but all the time my browser has prompt me like- The proxy server is refusing connections. And burp suite intercept prompt is like - GET /success.txt HTTP/1.1 Host: detectportal.firefox.com User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Accept: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cache-Control: no-cache Pragma: no-cache Connection: close What can do please suugest me. i am configured my browser and burp suite according your blog on this. thank you

Liam, PortSwigger Agent | Last updated: Jul 02, 2018 07:08AM UTC

When intercept is turned on, Burp Suite should be intercepting the request. The request should appear in the Proxy "Intercept" tab. It sounds like you are able to see the request in this tab. We have two tutorial pages to help you use Burp Proxy within our Support Center, have you checked these out? - https://support.portswigger.net/customer/portal/articles/1783118-getting-started-with-burp-proxy - https://support.portswigger.net/customer/portal/articles/1783119-using-burp-proxy For new users we also recommend that you follow all of our tutorial articles to gain a better understanding of Burp Suite - https://support.portswigger.net/.

Burp User | Last updated: Oct 15, 2018 06:46PM UTC

Hey. I can say I have the same problem. I've configured the proxy listener on Byrp (127.0.0.1:8080) and I manually set the same configuration on Firefox ESR. Burp worked for a while but now, if I try to intercept (intercept on) the browser doesn't load any page.

Liam, PortSwigger Agent | Last updated: Oct 16, 2018 10:53AM UTC

Christiano, when intercept is turned on, Burp Suite should be intercepting the request. The request should appear in the Proxy "Intercept" tab. Are you able to see the http request in this tab? We have two tutorial pages to help you use Burp Proxy within our Support Center, have you checked these out? - https://support.portswigger.net/customer/portal/articles/1783118-getting-started-with-burp-proxy - https://support.portswigger.net/customer/portal/articles/1783119-using-burp-proxy For new users we also recommend that you follow all of our tutorial articles to gain a better understanding of Burp Suite - https://support.portswigger.net/.

Burp User | Last updated: Oct 17, 2018 01:57PM UTC

dear Liam Tai-Hogan, unfortunately, I cannot see any request intercepted in the Proxy "Intercept" tab. Thank you anyway for your answer, that I've really appreciated. I'm gonna read the pages you suggested me. Thank you again. c;m

Liam, PortSwigger Agent | Last updated: Oct 17, 2018 02:14PM UTC

Could you send us a screenshot of the Proxy Intercept tab. You can send it to support@portswigger.net. Thanks.

Burp User | Last updated: Apr 05, 2019 03:02AM UTC

try using an earlier version of firefox, maybe with the updates the proxy is blocking you

Burp User | Last updated: Apr 05, 2019 03:07AM UTC