Remove the false Yahoo Search startscreen in the Firefox

The Search Yahoo startscreen in the Firefox 41 OS Windows 10 is manually not to remove. All advices are in vain. He became into the OS with a false downloader program.

Use the Malwarebytes  Anti-Malware 2.0.2.1012 ^{(torrent)
witch removes many PUPs.}

e325c549-dfea-4258-ac01-0f7baf68f990 in the ManyResultsHub

This plug-in container is not so dangerous but more annoying: time after time the virus scan must work to get rid of him but he reappears immediately.
Also he intrudes the Firefox and other browsers.
He has a narrow relationship with the program ManyResultsHub.

Solution:
Look into C\Program Files X86 and scroll for ManyResultsHub.
Delete this program.

Thanks to:
Cristian Steffen (French language.)