Windows 10: Windows 11 won't allow me to have Firefox and Chrome open at the same time

About a week ago the browsers I use started to behave strangely. For example - if I open Chrome the session I have open in Firefox disappears and vice versa. The sessions show as running in the Task Manager but not on the screen/desktop. If I click on the browser icons on the task bar a new session of the browser opens, not the original one that continues to run but that I can't view. I have uninstalled and reinstalled both browsers but the behaviours have not gone away. I have run multiple scans for viruses and malware but nothing has been found. Any help would be appreciated. Thanks.

:)

 

Chrome and Firefox not opening after Windows update.

Somehow chrome & firefox have appeared in the list of forbidden aplications in family panel of Microsoft account.

That's why these apps were closing just after you have opened them.

Removing chrome & firefox from that list solves the problem.

Have a nice day.

 

Windows 10 - Chrome and firefox are not working

This helped me with Chrome but not with Firefox.

I opened Control Panel>Troubleshooting>Programs>Advanced, Run as Administrator and then went through the steps. My problem was the Chrome wouldn't start at all, so I went through the steps and it asks what program you're having problems with, I chose Google
Chrome, it'll go through a short diagnostic and then give you the option of Troubleshoot Program & then it gives a list of problems. I chose the first one: This program worked in earlier versions.... then click next, I clicked Windows 7, then next and it did
it's little fix. I tested and Chrome opened up just fine.

No such luck for Firefox, though.

 

Chrome won't open any page [Solved]

IE 11 and soon to be replaced by Sparta
Firefox

will never use chrome again (too many problems)