Sometimes add-ons include unwanted bonuses. Please check out these threads: (1) [https://support.mozilla.com/en-US/questions/790833 Why is every new tab I open (not each new webpage, which comes up with my home page, just the tabs) immediately going to a site called "Searchqu.com" which I've never heard of before and deleting and reinstalling firefox hasn't gotten rid of? | Firefox Support Forum | Firefox Help] (2) [https://support.mozilla.com/en-US/questions/829424 i cant get rid of this(http://www.searchqu.com/406) software did all i know how to do! | Firefox Support Forum | Firefox Help] They are long and have a lot of tips and suggestions. Any luck?