Mozilla and Yahoo are suing each other over Firefox's default search The companies are suing each other over a deal that was signed back in 2014 that would make Yahoo Firefox’s default search engine through 2019. Firefox walked away from the deal when Yahoo and AOL merged in 2017 . They stated that it would negatively affect Firefox which fell under a clause that in the contract that would allow Mozilla to back out of the contract. Now its up to the courts to state which company is right. Want to read the full article at Mashable? Follow this link. http://mashable.com/2017/12/06/mozilla-yahoo-lawsuits-firefox/?utm_cid=a-rr-tech#jNCzSVkCfaqU