Burp Suite: Turn off the Network Captive Portal in Firefox

10 Oct 2018

Hello World!

If you are using Burp Suite to intercept and analyze your traffic with Firefox, you are getting per default very annoying succeed.txt requests from the Host detectportal.firefox.com. This can ruin your History in Burp Suite by spamming it with Messages and is also really annoying when the intercept mode is activated. One solution would be to set the Scope from Burp Suite to the Website you are testing. You can achieve this by setting the URL of the Website in the Target tab. Another way is to disable this messages in Firefox.

1. Browse about:config in Firefox.
2. Search for network.captive.
3. Set network.captive-portal-service.enabled to false

Now you should be fine.

Happy Hacking!