I have pgAdmin v4 installed, my default browser is Firefox, but I would like to open pgAdmin as a standalone app on Chrome. I fixed that problem following the procedure described in various Stackoverflow answers such as Launch pgAdmin 4 as a standalone app using chrome browser commands and pgAdmin 4 v3.1 How can I use another browser? (Win 7), i.e. configuring the "Browser command" option of pgAdmin to use Chrome.
That worked till sometime ago, but with the latest versions (at least 4.24 an 4.25) there is a problem: when I launch pgAdmin it still opens the default browser and not Chrome, as I configured. However, if I right click on the icon of the system tray and select "New pgAdmin 4 window..." it correctly opens Chrome.
I thought it was just me, but I found that there is at least another user with the same problem.
As pointed out by a developer of EnterpriseDB (the company behind pgAdmin) in this answer, that is a bug in the QT library that happens on Windows platform; it has already been reported and developers are working on that.