My Firefox Browser was somehow removed by Realtek Ethernet connection when I inadvertenly allowed it through Comodo Firewall (I clicked allow vs allow Files only). I went to Add/Remove Programs & it was not in the Program section. I used search for, & found everything associated with Mozilla Firefox & was able to delete evrything except two items: 1} C:\Program Files\Mozilla Firefox\plc4.dll and 2} C:\Program Files\Mozilla Firefox\plds4.dll I tried every installer that I could think of. The unistall programs I tried were: Windows Add/Remove, Absolute Uninstaller, File Assasion, Revo Uninstaller, KillBox, & CC cleaner. None seemed to work. Anybody have any suggestions other then System Restore or System Recovery? Any help would be appreciated. Thanks everyone. AJB aka quadfinder

Hi quadfinder, Welcome to Bleeping Computer.

Try deleting these files in Safe Mode.