Qone8 is a "Browser Hi-jacker" - "' PUP", usually installed unbeknownst to the user,while installing other software.
Please try the following Removal Guide listed HERE It is not classified as Malware, however does cause undesirable traits. You can find some of the same Superb ( Free ) tools used in this Removal Guide, below my Signature (Second Link)
Also,it may be benificial to Open your McAfee Security Center, Navigate, go to quaratined items,and delete/Restart.
This will remove the items McAfee detected and quarantined.
All the Best,
As a follow-up I was wondering if you utilized the suggested (Removal Guide) to resolve your issues?
If you indeed have done so,please apprise us of such as we can Mark this discussion as "Answered"
Should it be the case that you are still experiencing the same issues, feel free to let us know,so as we can assist you further.