Load Extension in Fiddler
Updated on Apr 8, 2026
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Compile your project.
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For Extensions projects, copy the assembly .DLL to the correct Scripts folder:
- Use %userprofile%\Documents\Fiddler2\Scripts to make the extension available to the current user.
- For Custom Inspector projects, copy the assembly .DLL to the correct Inspectors folder:
- Use %userprofile%\Documents\Fiddler2\Inspectors to make the inspector extension available to the current user.
- Restart Fiddler.