Підтримка застарілих веб-переглядачів автор Mike Kaply

The add-on can be used by enterprises on Windows to support loading certain URLs in other web browsers, including Internet Explorer.

In order to function properly, you must also install the native components which are available here in early release:

https://github.com/mozilla/legacy-browser-support/releases

and then use group policy to designate URLs to open in other browsers.