The Default Applications capplet sets up some default programs to use for different events. Your default text editor is used when a plain text file needs to be opened for either viewing or editing. By default, Pluma is used as the text editor. However, as text editors are installed, more options are added to the Text Editor drop-down list. Choose your preferred Text Editor by selecting the right item in the System section. Your default web browser is referred to when you click on a link that directs to a website. By default, Firefox is used to view HTML files. However, as more browsers are installed, more choices will become available to use. Choose your preferred Web Browser by selecting the right item in the Internet section. Your terminal window will sometimes be brought up to execute commands. For example, if you select to have an application be brought up in the console, the terminal defaults will be called. Numerous defaults for terminals exist; the default being MATE Terminal. Choose your preferred Terminal Emulator by selecting the right item in the System section.