How do I configure Mozilla Firefox to use a PAC file?

To redirect your web traffic to the Zscaler cloud, configure your browser to use a Proxy Auto-Configuration (PAC) file.  A PAC file is a text file that directs a browser to forward traffic to a proxy server before going to the destination server. The Zscaler service hosts a default PAC file that uses Geo-location technology to forward traffic to the nearest Zscaler Enforcement Node (ZEN).

To learn more, see How do I use PAC files to forward traffic to the Zscaler service?

The following steps describe how to configure Mozilla Firefox to use a PAC file. The browser version used in this example is Mozilla Firefox 44.0.2.

If you were provided a PAC file URL, skip the next two steps. Otherwise, do the following to retrieve the default PAC file URL:

To view the default PAC file, log in to the service portal and do the following:

  1. Go to Administration > Resources > Hosted PAC Files.
  2. Copy the URL of the default PAC file for the Web.
  1. Open Firefox and open the menu. Then click Options.
  1. In the Options tab, click Advanced, then click Network. In the Network tab, click Settings....
  1. In the Connection Settings window, select Automatic proxy configuration URL and paste the PAC file URL that you copied from the Zscaler service portal.
  1. Click OK to save the configuration.

For more information about getting started on the Zscaler service, see the Zscaler Quick Start Guide.