Networksetup -setsecurewebproxystate Wi-Fi off Networksetup -setsecurewebproxy Wi-Fi 127.0.0.1 8888 If you want to capture HTTPS traffic, you will need to update the scripts as follows:

When Fiddler starts or 'attaches' as the system proxy, it runs set the proxy only for HTTP, not HTTPS. NEW MonoFiddler v4.4.8.3 includes a new FiddlerScript engine (based on C#). Sudo apt-get install libmono-system-web4.0-cil Some places in Fiddler use a URLDecode function from System.Web this will be removed in the future, but for now, consider running Sudo apt-get install libmono-windowsbase4.0-cil Sudo apt-get install libmono-system-windows-forms4.0-cil If you want to install Mono piecemeal, beyond the base Mono, you must install the Winforms packages.įor Ubuntu 13 / Linux Mint 15 / Elementary OS Luna, run: On Mac: Visit and install the MRE package.

That means 3.1.2 for OSX or 2.10.8 for Linux.

You can look at the Proxy Configuration section below for details on how you might go about doing this.įiddler requires that you have the latest Mono package installed for your platform of choice. Your application's code will need to do this itself. Note: FiddlerCore for Mono does not automatically change the system proxy settings for Mac or Linux. Mono FiddlerCore 4.4.5.3 Built: Sept 13 2013 We've run this code (more or less) successfully on Ubuntu 12+, Linux Mint 15+, and OSX 10.8+. Please be sure to include your OS, Mono, and Fiddler version information. Please report any issues (especially blockers) you discover to moc.kirelet|relddif#moc.kirelet|relddif. Old Linux build: 4.4.5.2 Built: August 28th 2013 Fiddler for MonoĬurrent Linux build: 4.4.8.4 Built: June 13 2014 Revision date and history available at the bottom of the page.

Fiddler for mac os download