Are you using this site: https://www.smartgpseco.com/ (see [https://www.magellangps.com/support/contentmanager https://www.magellangps.com/support/contentmanager]) ---- ''foxterry89 [[#question-1229576|said]]'' <blockquote> I have followed the instructions provided by Magellan, but the plug in is missing. What happened to MgnContent Manager plug in? </blockquote> Was it a plugin or an extension? The regular release of Firefox 52 and later no longer run any plugins other than Flash. See: [[Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work?]] Firefox 61 runs extensions, of course, but from Firefox 57 on, "Legacy" interfaces have been discontinued so extensions cannot directly do as much as they used to; the developer sometimes needs to supply a separate program for the extension to interact with. Does Magellan have instructions for updating your device using a different browser?