I wanted to ask what Search.mainorne.com is and how did it became my homepage? I was surprised when I opened my web browser and saw this page set as default. I used to use another search engine, too – it seems that this web search engine is all over my Internet browser. I get its search outcomes even when I type a search keyword into web address bar and hit Enter. Why has this search engine became as default one without my knowledge? I would really like to know. Thank you.