How to Manage Modules in Joomla CMS
Most of the items around the edge of a Joomla front page are modules that can be managed with Module Manager. To access this feature, click the Module Manager icon in your Administration control panel, or choose Extensions→Module Manager in any back-end page.
Navigate Module Manager
Notice the drop-down menu at the top of the page, which is set to Site (the default). The other option in this menu is Administrator. In other words, this menu lets you choose either of two sets of modules: one for the site as a whole (that is, the front end) and one for administrators (that is, the back end).
When you’re in article-editing mode, the drop-down menus are disabled. To get out of a page and enable the drop-down menus, click Close. Just don’t forget to save your work before doing so!
Browse through Module Manager by using your browser’s scroll bar. At this time, 61 modules are installed as part of the sample data that comes with a Joomla installation, whereas the default installation of Joomla boasts only 4 modules.
To see all available modules, scroll to the bottom of the page and choose All from the Display drop-down menu. By default, Joomla will display only 20 modules at a time. Using the Display menu, you can also tailor the Module Manager to show pages with between five and 100 modules at a time. The choice is yours.
In browsing through Module Manager’s contents, you’ll notice a few menu items such as About Joomla! and This Site. But don’t you manage menus by using Menu Manager? Why do these menus appear in Module Manager?
Modules are responsible for handling the display of menus, so when you want to edit the settings of a menu as a whole, you turn to Module Manager. When you want to work with only the structure and items contained in a menu, you work with Menu Manager.
Now look at the Select Access drop-down menu, which indicates the user levels that can view specific modules. Click on the Select Access menu and set the state to Registered. The page refreshes, listing all of the modules in the CMS that are visible to registered members of your site.
Remove and delete modules
To remove an individual module from view, you’ll need to unpublish it. To do so, click its green check mark in the Published column of the offending module’s row.
If you want to unpublish multiple modules at the same time, you can do so by clicking the checkbox to the immediate left of the module’s names and then click the red and white Unpublish icon at the top of the page. If you don’t see the modules you want to unpublish, navigate through the Module Manager’s pages until you locate it
Try it on for size: Click the check boxes for About Joomla! and Login Form. Now click the red-and-white Unpublish button at the top of the page. Module Manager shows the two modules as unpublished.
You’ve removed the About Joomla! and Login Form modules, but are they really gone? Yes, indeed. Click the View Site link at the top of Module Manager to open a preview of your site in a new browser window or tab. As you see, the page no longer displays those modules.
To delete a module — as opposed to just removing it from view — check its check box in Module Manager; then click the Trash button at the top of the page.