Cookie Scanning with Fiddler

With the recent kerfuffle about sites providing misleading P3P statements, I decided to throw together a quick Fiddler add-on that displays privacy information simply in the Fiddler UI. Install the new Privacy Scanner add-on and Fiddler will gain a new top-level menu named Privacy. The menu has two options. The Enabled option controls whether the…


New Tricks in Fiddler 2.3.8.2

The new Fiddler Beta has a few useful tricks. First, you can copy a DataURI to your clipboard (from Fiddler itself, or anywhere else): and use the new Edit > Paste Files as Sessions command: … to instruct Fiddler to parse the DataURI and create a new Session for it. You can then use Fiddler’s…


MIX2011 Fiddler talk is now live

My talk at this year’s MIX conference is now complete and the video, slides, and references are now available for download. See https://www.fiddler2.com/mix/ for links. One of demos showed off a simple little extension that can be used to manipulate GeoLocation web service responses, allowing you to easily spoof modern browsers into thinking your computer…


New Features in Fiddler 2.2.9.9 Beta

New features and fixes in the Beta. The Find Sessions feature (CTRL+F) now supports searching with regular expressions. Enhanced the “Compare Sessions” feature on the context menu (set fiddler.differ.ultradiff = “False” if you don’t like it) Use a preference to persist the Scaling Mode preference in the Image Inspector Fix bug whereby the URL https://something/http://something would be…


New Features in FiddlerCore 2.2.9.9

Version 2.2.9.9 of the FiddlerCore .NET class library has been released. This new version includes a number of new features that make FiddlerCore more useful for a variety of traffic monitoring and capture scenarios. With the exception of the final improvement (Server Read Callback), all of these improvements are also available to extensions running inside…


Fiddler’s New Import and Export Architecture

All versions of Fiddler support a rich extensibility model that enables developers to enhance Fiddler with new functionality useful for traffic inspection, analysis, and sharing. However, writing extensions that import traffic captured by other tools was difficult, and extensions that offered traffic export often extended the UI in confusing ways or failed to implement basic…


Fiddler New Features – The Preferences System

Fiddler 2.2.9 is the first release with end-to-end support for a Preferences System, accessible to script and extensions, that will simplify the storage and reloading of user-preferences. The system is somewhat similar to the preferences system within many web browsers; as in those browsers, you can type about:config in Fiddler’s QuickExec box to see the…

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