Solved! this is mad

[fehim123]

wqktkwqltk912jjwhwhtwqtkqwltwqkjasngbdnxmcjdghsdhgdskaslwqouitutqwwqksafashhwqtkwkskfsjsksjkqwrjwqktsnmanjfjsaghsanmxvuhtasdfakwqlkwql!-Mozilla Firefox it says this every time i turn on my pc even thoush mozilla is closed it's an ad i think help

 

[Wolfshadw]

Run an anti-malware scan like Malwarebytes to see if anything comes up.
Run an anti-virus scan to be sure your system is clean of viruses.
Check your browser add-ons to see if there is something you do not recognize.

-Wolf sends