When I enter my MAMP PRO url in a browser on a different device my webpage does not show up. MAMP GmbH May 17, 2019 11:00 Follow You can find information on entering your url in a browser here. http://documentation.mamp.info/NAMO/en/Mac/How-Tos/Entering-the-URL-in-the-browser/ Related articles Does MAMP PRO 5 run on Mac OS Catalina beta? My SSL sites in my hosts list are red My https site shows a warning when I try to open it. I want to revert back to MAMP PRO 4.5.