Here is a simple way to hide applications icons from the dock
- Find the application you want.
- Right/Control click on the applications name and select ‘View Package Contents’ from the drop down menu that appears
- In the window appears browse to the ‘Contents’ Folder and open the file named ‘info.plist’ with TextEdit (default)
- At the bottom of the info.plist file, and the following two lines, and make sure to intent them so they match the rest of the formatting:
<key>NSUIElement</key>
<string>1</string>
Save the file and you are done! To reverse this simple remove those two lines
