Google to Bing
I am using a Macbook Pro 15' mid 2012. I am currently running OS X 10.10.2 and the current version of my safari is 8.0.4. Recently my safari have been running on Bing as my search engine instead of Google. The safari preferences under the search engine is set as Google but as soon as i search something on my Url, it automatically moves to Bing and not only that, pop up ads will just appear in safari. I have tried changing the settings for my homepage but as i reopen safari, Bing appears as the homepage of safari. It's annoying and i want to get back the default settings that Apple have given to me when i first launch my safari on my mac. Thanks.
iOS 8.2