Hi, I'm having issues since a while with Firefox on Windows 2016 RDS servers. At random occasions Firefox will be extremely slow. It can take up a 2-3 minutes before being available to browse or access anything in the software. I have already search a lot and tried many different things (refresh Firefox, uninstall, reinstall, create new profile, disable hardware acceleration, use ESR version, disable antivirus, safe mode, etc.). Nothing worked. Firefox is still randomly extremely slow. I thought this might be the computer itself being overloaded, but no, it isn't. We use roaming profile, the appdata folder is redirected to a network folder. So I thought this might be the issue. I created a profile specifying a local folder. Didn't fix the issue. I did a procmon on Firefox process, it doesn't hang... but I'm fare from being an expert, and since Firefox has many process, it's hard to tell which one is slow... Anyone have an idea? Thanks!