Alternative browser to launch for configured websites.

Setting the policy controls which command to use to open URLs in an alternative browser. The policy can be set to one of ${ie}, ${firefox}, ${safari}, ${opera}, ${edge} or a file path. When this policy is set to a file path, that file is used as an executable file. ${ie} is only available on Microsoft® Windows®. ${safari} and ${edge} are only available on Microsoft® Windows® and macOS. Leaving the policy unset puts a platform-specific default in use: Internet Explorer® for Microsoft® Windows®, or Safari® for macOS. On Linux®, launching an alternative browser will fail. Example value: ${ie}