In the last days it often occured that a website that I try to open in Firefox is pending (showing the waiting symbol, see attached image). If I open another tab to access another web site the same thing happens. If I then open the Edge-Browser to see whether it is a problem of Firefox, just in this moment, the websites in Firefox suddnely all appear! This is not a coincidence. I observed it around 20 times and played around with the time waiting until I opened the Edge browser. I observed it with several kinds of websites (static to web app). I don't suspect Windows to annoy Firefox, or should I?