For some reason, on my Windows 10 laptop that I use for music production (Ryzen 3500U, Vega 8), Firefox installed from Microsoft store takes 5-10 seconds to start, while Edge starts instantly.
I always liked Firefox, both practically and ideologically, but the annoyance is so high I never use it from that particular laptop.
cause: Edge browser is started when Windows boots up, it sits there started but invisible, first window open is fast. It adds up to your windows start time and memory consumption.
solution: start firefox during windows startup, too.
however to start it invisible and behave like Edge, it may take additional tweaks. of course, it costs extra startup time and memory. Also, you can switch off Edge boot-time startup, if you want.
I always liked Firefox, both practically and ideologically, but the annoyance is so high I never use it from that particular laptop.
If anyone knows the cause or a fix, please share.