Remove MapperIndex
MapperIndex is an annoying application, which may show up on your Mac out of nowhere. It is not a dangerous program, but it does not really offer any useful features. Instead of enhancing your experience, it will try to generate ad revenue for its creators by promoting 3rd-party sites on a regular basis. This 'promotion' may occur through random redirects, or by replacing your Web browser's default new tab page and search engine. Of course, these are not things that you want to experience, and we advise you to take the necessary precaution to remove the application.
The best way to dispose of MapperIndex is to use an up-to-date Mac anti-malware tool. This is recommended because it guarantees that all files part of this PUP's activity will be removed at once, giving the app no chance to continue to run. Manual removal is not that thorough, and there might be leftover files or components.
To avoid encountering Mac PUPs like MapperIndex, you should use anti-malware software at all times. Also, make sure to be more careful whenever you spend time online. Avoid downloading files from non-trustworthy sources, and always check out the instructions of software installers. Make sure to decline 3rd-party offers.