Extensions Plugin Manager Edit Installer Group
From Joomla! Documentation
Installer Group[edit]
These plugins control which tabs appear in the System → Install Panel → Extensions page.
Installer - Install from Folder[edit]
This plugin allows you to install packages from a folder.
Installer - Install from URL[edit]
This plugin allows you to install packages from a URL.
Installer - Install from Upload[edit]
This plugin allows you to install packages from your local computer.
Installer - Install from Web[edit]
- Tab Position. Place the Install from Web tab first or last.
Installer - Override[edit]
This plugin enables notifications and handling of overrides after an update in case of changes.