Ads by ZipArrow adware may start unexpectedly attacking your Mac computers. The adware targets Mac-related browsers, such as Google Chrome, Safari and Mozilla Firefox. The adware, by the way, is a part of the AdLoad family. The adware is integrated with many free applications today, so people may download and install it pretty unintentionally. The adware displays ads not related to the sites that you visit. It may also periodically redirect your to many other shady resources by opening new browsers tabs and forwarding you to such questionable resources. On the other hand, the ZipArrow adware does not always display…