Firefox does not have a "always on top" option. This could be a Windows problem. Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there? ------------------- Start your '''Computer''' in safe mode with networking. Then start Firefox. Try '''Safe''' web sites. Is the problem still there? '''[http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting The Computer In Safe Mode;<br>Free Online Encyclopedia]''' ------------------- '''[http://support.microsoft.com/fixit/ Microsoft Fix it Solution Center: troubleshooting software issues]''' https://support.microsoft.com ------------------ Type '''about:support''' in the address bar and press '''Enter.''' Under the main banner, press the button; '''Copy Text To Clipboard.'''. Then in the reply box at the bottom of this page, do a right click in the box and select '''Paste.''' This will show us your system details. '''No Personal Information Is Collected.'''

Make sure that you do not run Firefox in full screen mode (press F11 or Fn + F11 to toggle; Mac: Command+Shift+F). *https://support.mozilla.org/kb/how-to-use-full-screen