when using firefox I keep having my windows operating system being corrupted, I'm beginning to think that my sync files are hacked because everything seems to run clean up and until I log in to sync my account. after a full and complete reinstall of my. operating system everything seemed okay this morning so I did a reinstall of firefox, sofar so good, test visited a few sites, again smooth running, synced to my account, after about an hour and a half started having control issues with firefox not taking commands and opening new windows. tried refresh just made it worse. then I find that win defender is crashing and my ooperating system says I'm not properly logged in. Doing a complete reinstall again. This time will have to rebuild in the window browser.