The Guide shows you Step-by-Step How to Create a New Application Launcher inside to the Main Menu on SparkyLinux Eris Mate Desktop.
The Practical Example Here Illustrated is About Adding the Firefox Nightly Entry inside to the Internet Section a SparkyLinux Mate Desktop.
The Technique is Useful for Adding Any New Custom Software on a SparkyLinux Mate Desktop.
To the Post Bottom there is a Link to Guide for Installing the Firefox-Nightly Browser for SparkyLinux.