Installing contributed modules (Drupal 8)

You can add third-party contributed modules to extend or alter Drupal's behavior.

Note that advanced Drupal site builders often use command-line techniques like the UNIX wget command or drush.

Choose the module file

Choose the right release. When you have chosen a module to add to your site, you must choose which release to use. The version must be compatible with your version of Drupal. Note that 'Development releases' are versions of the module that are in an active stage of development. They may be written for a previous/current/future version of Drupal, are considered unstable, and should be handled with care. 'Recommended releases' are stable and ready to use.
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Upload the module

There are two basic ways to upload module files to a Drupal 8 site:

• Through the Drupal user interface
• Manually on the server

The first option will not work on many types of servers, but may be a more user-friendly choice on servers where it does work. The second option is always available.

Option 1: Upload the module through the Drupal interface

• Navigate to the install page. Navigate to Extend > List (tab), or http://example.com/admin/modules, and click the link '+ Install new module.' (You must have the Update manager module enabled to see this link.)

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• Follow the prompts. You will be prompted to provide either the URL to the download, or to upload the .tar.gz or .zip file from your local computer. Click 'Install', and the Update manager will copy the files into your sites/all/modules folder. (See Update manager for more information about what that core module can do.) The next screen gives you two links. Click 'Enable newly added modules' and skip down to the 'Enable and configure' section.
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If your site asks for your FTP username and password, it is referring to the username and password to access your site, not drupal.org

A note about FTP: If FTP is not enabled for your server, you may receive an error message. Drupal will not be able to diagnose the problem, only tell you that there is one. It's up to you to determine whether your server is properly configured for FTP.

Option 2: Upload the module manually

• Extract the files.The downloaded module package will be in a compressed file format such as 'tar.gz'. On Windows, use a program like 7-zip to extract the files. On modern Mac systems, double-click the .tar.gz file. For *nix systems, use the command line:

  tar -zxvf modulename-drupalversionnumber.tar.gz
  You should see a list of files extracted into a folder.

Enable and configure

• Read the directions. If the module has an installation file (usually INSTALL.txt and/or README.txt), read it for specific instructions. There are modules that require special treatment, and even modules that depend on other downloaded files to function properly. Sometimes the README file has no .txt extension. If you double-click it, your computer won't know what program to use. In that case, open a text editor first, and then open the file using the editor's 'file open' command.
• Enable the module. Navigate to Administer > Extend or http://example.com/admin/modules. Check the 'Enabled' box next to the module and then click the 'Save Configuration' button at the bottom. Note: If you are updating an existing module, you'll need to click 'update script' at the top of the page or load http://www.example.com/update.php, then click 'Continue' (after making a backup of both your database and 'sites' folder).
• Set up permissions. Some modules will require that you change permissions to get them working. Permissions information may be in the instructions that came with the module. Navigate to Administer > Extend and click on the 'Permissions' button for the desired module. You can also do this on the Permissions page (Administer > People > Permissions). Scroll down to see if the module appears in the list and, if it does, give the appropriate permissions to desired roles.
• Adjust settings. Most modules will have some type of settings page. It will vary from module to module but if not described in the README.txt file, it can usually be located by navigating to (Administer > Extend) and clicking on the 'Configure' link for that module. Not all modules have settings pages.

Please note: You can only have one copy of a module with the same name in each Drupal site. The module's name is determined by the name of the .module file, not by the name of the directory.

Tip: If you run into problems, search the module's issue queue and the forums. If your problem hasn't already been addressed, post a question or issue and someone will try to help you out.

Tip: To keep up-to-date on any issues and fixes related to your newly installed module(s), you can create a user account on Drupal.org (if you haven't done so all ready) and then subscribe to the feed of each module you are using.