Why don't routes work from Firefox to other browsers (in Firefox 49+) ?

If you run into issues when Netwrix Endpoint Policy Manager (formerly PolicyPak) Browser Router is configured to route site from Firefox to some other browser but its not routing at all. We've fixed this problem with the latest CSE, but if you're using an OLDER CSE, then you could need to modify Firefox to compensate.

New releases of Firefox comes with the setting where we can enable multi-process windows for the browsers. See the following screenshot:

The above screenshot means that its enabled and you should expect the Endpoint Policy Manager Browser Router will have problem in routing. To make it working please disable the setting using Endpoint Policy Manager's pre-configured Pak for Firefox about:config as illustrated in the screenshot:

So once you check and uncheck the above option it will set the value as false like shown in below screenshot:

You should be all set for now with Endpoint Policy Manager Browser Router. Let us know if otherwise.