Hi, we can only help you a little bit here for Windows issues. Please find the MS DOS command on start menu or type in search cmd.exe when it shows Right Click on it and Run as Administrator Copy/Paste : SFC /Scannow then Enter and then Reboot. ( SFC<space>/Scannow ) Am not going to go to ipconfig commands, you can look those up. release , renew Run : https://www.malwarebytes.com/ Keep the logs Please see 1 of these respected Forums : https://www.tenforums.com/ https://www.bleepingcomputer.com/forums/f/229/windows-10-support/ you can go to answers.microsoft.com but they will tell you to uninstall Firefox and everything that is not IE or Edge Before going : Uninstall any BitTorrent apps, uninstall cracked programs and delete cracks then Post in only 1 forum, then wait. Please let us know if this solved your issue or if need further assistance.

Try down loading from here : https://www.mozilla.org/firefox/all/