Employees can install the custom browser package using a network server. However, you must either lower the intranet security level or make the server a trusted site.
To lower your intranet security
In Internet Explorer 11, click Tools, Internet Options, and then the Security tab.
Click Local intranet, and then Sites.
Uncheck Automatically detect intranet network, uncheck Include all network paths (UNC), and then click OK.
To make your server a trusted site
From the Security tab, click Trusted sites, and then Sites.
Type the location of the server with the downloadable custom browser package, and then click Add.
Repeat this step for every server that will include the custom browser package for download.