Still remains on the hard drive after you delete Unity Web Player 5.3.4f1 from the Application folder, in case that the next time you decide to reinstall it, Generally, its additional files, such as preference files and application support files, When installed, Unity Web Player 5.3.4f1 creates files in several locations.
Instead of installing it by dragging its icon to the Application folder, uninstalling Unity Web Player 5.3.4f1 may need you to do more than a simple drag-and-drop to the Trash. Unity Web Player 5.3.4f1 is a third party application that provides additional functionality to OS X system and enjoys a popularity among Mac users. Unlike the software developed for Windows system, most of the applications installed in Mac OS X generally can be removed with relative ease. How to Uninstall Unity Web Player 5.3.4f1 Application/Software on Your Mac