Plugins

Disables updating the WordPress Core plus plugin and theme installation, updating and removal for all users except the administrator user with ID 1.

The default WP Admin Toolbar (frontend) is moved to a right click menu (context menu).

This creates a drop-down list of all sites in a multi-site install and lets you switch to the corresponding admin page of the other site.

AdminSpeedo is a simple method of boosting your WordPress admin dashboard and freeing your site code from unnecessary and not needed items.

Improves the tag sections located in the admin backend (WordPress dashboard) classic editor post screens.

Adds autocomplete functionality to all taxonomy input fields in admin panel.

Check whether the title matches other posts while adding or editing a post, page or custom post type in classic editor.

The plugin simplifies the WordPress admin user interface by hiding most of the WordPress menus.

Admin User Messages is a simple plugin that allows communication just between Admin and single users, but not a communication between user and user.

Set up permissions for categories and taxonomies to admin users whose role is not "administrator"