Computer and Internet (Q&A)

Answer:

An add-on is generally a software extension that adds extra features to a program. It may extend certain functions within the program, add new items to the program's interface, or give the program additional capabilities. Add-ons can be plug-ins, extensions and themes. For example, Mozilla Firefox - Web browser, supports add-ons such as the Google toolbar, ad blockers, etc.

Some computer games support add-ons that provide extra maps, new characters, or give the player game-editing capabilities. Most add-ons are available as self-installing packages. This means the user can simply double-click the add-on package to install the files for the corresponding program. Other add-ons may require the user to manually move files into specific directories. While not all programs support add-ons, many programs are now developed with add-on support, since it provides a simple way for other developers to extend the functions of the program.

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