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How do I change the Burp browser from chromium to Firefox?

Davidovich | Last updated: Sep 20, 2020 09:28AM UTC

Everytime I click open browser it opens the default chromium browser however if I search something in chromium it just loads infinitely, is there a fix for this and how do I change the browser to Firefox or anything else I want it to be?

Ben, PortSwigger Agent | Last updated: Sep 21, 2020 07:59AM UTC

Hi, If you click Open Browser (under Proxy -> Intercept) then that will always use the embedded browser that we have created for Burp. The advantage of using this is that it is preconfigured to work with Burp and there should be no additional configuration steps. If you wish to use a different browser, you can still do this but there are some additional steps that you will need to perform to get it to work (setup the proxy, install the Burp CA Certificate etc). You can find details on how to setup other browsers for use with Burp on the following page: https://portswigger.net/burp/documentation/desktop/getting-started/proxy-setup/browser Regarding your issue with pages not loading in the embedded browser - do you have the "Intercept is on" configuration set in the Proxy -> Intercept tab of Burp?

Davidovich | Last updated: Sep 22, 2020 07:33PM UTC

Thanks for the reply, the weird thing is, when I turn off intercept it works and then when intercept is on it doesn't . Should I open the browser first then turn on intercept after opening it?

Ben, PortSwigger Agent | Last updated: Sep 23, 2020 07:15AM UTC

Hi, With the "Intercept is on" configuration set then each request sent from your browser is being stalled in Burp waiting for you to perform some manual action on it. Whilst the requests are being held in Burp, the website will not load because the requests will not have reached the destination web server. We would not generally recommend having the "Intercept is on" configuration set unless you wish to intercept specific requests in real time. Having this set to "Intercept is off" means that the requests still pass through Burp (and can be seen in the Proxy -> HTTP history tab) but you are not required to manually perform an action on them so that they ultimately reach the destination web server.

Davidovich | Last updated: Sep 23, 2020 03:44PM UTC

Thanks a lot!

Harishkumar | Last updated: May 25, 2023 03:49AM UTC

Everytime I click open browser it opens the default chromium browser however if I search something in chromium it just loads infinitely, is there a fix for this and how do I change the browser to Firefox or anything else I want it to be?

Ben, PortSwigger Agent | Last updated: May 25, 2023 07:13AM UTC

Hi Harishkumar, The embedded browser, which comes built into Burp, is a modified version of Chromium - there is no way to change this. If you wish to use an external Firefox browser to proxy your traffic then you would need to set this up manually. There are some details on how to do this below (in terms of configuring the browser to proxy traffic through Burp and to install the Burp CA certificate in the Firefox browser): https://portswigger.net/burp/documentation/desktop/external-browser-config/browser-config-firefox https://portswigger.net/burp/documentation/desktop/external-browser-config/certificate/ca-cert-firefox In terms of your 'infinite loading' issue - do you have the 'Intercept is on' configuration set under the Proxy -> Intercept tab in Burp?

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