Hi, i recently had to deal with this myself.
Quone8.com is a page that pretends to be a search engine. At first it might fool some people and make them think that it is as reliable as any other one, but that is not true.
Thing like this come with a certain purpose, like installing all kinds of add-ons on your browser that may later send you fake pop up messages with warnings and advertisements. These kind of browser hijackers can also change your homepage.
What i did was to manually remove it from my browsers' extensions and add ons (you can do that from the settings)
I also searched in my computer for related files. Removing your temporary files might be a good idea also.
Look here for more detailed removal guide:
Qone8.com Removal Guide
However, this did not solve the problem. As much as I tried I couldn't get rid of it just like this.
You will need some kind of antimalware software. (Personally I used this one
Malwarebytes : Free anti-malware download)
I already had an antivirus program, but sadly, it can't catch malware like this.
I really hope this helps you. Good luck