We have an application that was integrated with several other legacy applications in the organization. We started upgrading our application to HTML 5 standards to make it work with all modern browsers such as Firefox, Chrome and Edge. Now the problem is that, our application has redirect links to 3 to 5 legacy applications that were coded for IE 7 and no where in the migration path. When the users click on these links while working on our application, Firefox opens a blank page, making them as blockers for our application uplift. 1) is there a way to force a link to open in IE while the parent page is launched using Firefox ? I have seen this link : https://stackoverflow.com/questions/43615678/force-a-link-in-i-e-to-open-in-firefox , but this is for the opposite requirement...open Firefox from IE. 2) how do you run applications requiring .cab files on Firefox ? if there is an answer for this, we don't need to worry about #1. Thanks.