I have tried the QgsBrowserModel but it doesn't seem to work. I am not even sure if that is the right class to use.
The problem is that I add WMS and database connections through a plugin but they won't show up in the QGIS Browser until I hit the refresh button
Do you know a way to refresh the Browser through the QGIS API? And if so, could this be applied to all currently opened instances of QGIS?