User Manuals

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  • Setup, Usage & Integration

Installing mu-plugins

Mu-plugins (also known as ‘must use’ plugins) are the plugins located in the “mu-plugins” folder; these are activated by default affecting all sites on a WordPress Multisite installation.

  • 95 % of WPMU DEV plugins are now designed to be installed in the /wp-content/plugins/ folder on your site.  However, a few like multi-DB, domain mapping, mutli-domains, additional tags need to be installed in the /wp-content/mu-plugins/ folder
  • Always read carefully all installation instructions for the plugin — since some plugins involve uploading php files and folders to a range of different locations.

Setting up your mu-plugins folder

Before you can install mu-plugins on your WordPress Multisite installation you need to create a mu-plugins folder by following these instructions.

You install mu-plugins using FTP as shown in the following video tutorial:

Alternatively, refer to these detailed ‘how-to’ instructions.

See Next: WPMU DEV mu-plugin separated into categories to help make selecting your next plugin easier