The specific message seen is "Unable to open" followed by the specific URL. Links open as expected when Edge is set as the default, but also fail to open when Firefox is the default. Steps to Reproduce: 1. Set Brave as the default browser. 2. Navigate in the Windows 10 Mail app to an email that contains a hyperlink. 3. Step 1: Open the Start menu, type in default apps and press Enter. Step 2: In the Default apps tab, under Web browser, click on your current browser and change it to Microsoft Edge or Internet. In many cases, you open an appropriate URL in your browser to authenticate to your Citrix digital workspace with all your applications, desktops and data Chrome initally opens in full screen window I know I can download the file and then open it up in the Chrome PDF viewer, but that seems like a workaround - posted in Vortex Support: I have set.