First, it should be noted that this plugin does exactly what it says it will do, and with very little fuss and no options. Perfect.
However, it has a minor, yet annoying, side-effect. Search for a new plugin with the Plugins/Add New menu standard in WordPress. Type in what you're looking for and get a list of candidates.
NOW, when you click on "Details" of any plugin candidate, the information box pops up; however, the top of that pop-up is now below the middle of the screen and it cannot be moved. Consequently, much of the details of that plugin are pushed below the bottom of the screen. :(
If you disable this plugin, everything returns to normal - the "Plugin Details Pop-up" window is near the top of the screen where it should be.
Tested: Disabled all plugins, works fine. Enable this plugin, it breaks. Same scenario using the default WP 2014 theme. Same results. Firefox, Chrome, Opera, Safari - all act identically.