---
title: "Proxying ZAP (localhost) through Firefox - Cybr"
description: "Proxying ZAP (localhost) through Firefox: a thread from the Application Security Discussions forum on Cybr, with 0 replies. Read-only archive."
url: https://cybr.com/forums/topic/proxying-zap-localhost-through-firefox/
---

Topic

# Proxying ZAP (localhost) through Firefox

0 replies

**Archived.** These forums are read-only. The conversation continues on [Discord](https://cybr.com/discord/).

1. Christophe

   Oct 1, 2021

   I found myself needing to repeat this step a few times and wasting time trying to find it, so here it goes:

   Step 1:

   Firefox Preferences -> Scroll all the way down to "Network Settings" and click on Settings... -> Select "Manual proxy configuration"

   Set the HTTP Proxy field to 127.0.0.1 and the Port to 8080. Select "Also use this proxy for FTP and HTTPS."

   Save.

   Step 2:

   In ZAP, click on Tools (in the menu) -> Options... -> Dynamic SSL Certificates -> Generate -> Save -> Pick a location to save

   Firefox Preferences -> search (top right) for security -> click on View Certificates -> Make sure you're in the "Authorities" tab -> Import -> Navigate to where you saved the certificate file -> Check the box that says you trust this CA to identify websites -> Click OK

   Step 3:

   Open a new Firefox tab and type about:config

   Click "Accept the Risk and Continue"

   Another search bar will appear in the Firefox window. Type network.proxy.allow\_hijacking\_localhost

   Double click the false to set it to true.

   Once you're done proxying through ZAP, make sure you undo step #1 and step #2.

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