I can't delete and replace Roaming>Mozilla>Firefox folder with a backup copy in Windows 11-- I get an other-program-using error. I have done this many times before in Windows 10 and it always works beautifully. In Windows 11, however, I get an error about another program using a file in the folder. If I try to delete the folder I get a message about needing permissions from user (for clarity, the user account is an administrator). Now I am also very familiar with Windows permissions. I checked and administrators already have full privileges on the folder. Even if I explicitly add my particular user, nothing changes. I have done some other sleuthing but nothing helps identify the problem. A bit of context – I just bought a new Dell, rather high-end and expensive laptop so I am really not amused at the fact that I can't just port in all of the stuff in the Firefox folder so I don't have to lose everything related to Firefox from my previous laptop. I do nightly Acronis backups so I have the folder and files but somehow Windows 11 is not letting me do my usual substitute backup copy of Firefox folder for new fresh-install Firefox folder. Please — help — I had hoped that I could use the Acronis Universal Restore feature to move everything over from my old system to my new hardware — I've done that before. Unfortunately that wasn't an option given that the new machine comes with Windows 11. I see other people have been having problems related to this folder with Windows 11 but I don't see any solution — again, please help! Thanks for any help resolving this!