How to Disable the WordPress Font Library in WordPress

What Is this feature?

Disable WordPress Font Library in Classic Monks removes the WordPress 6.5+ font manager from the admin, preventing fonts from being loaded unexpectedly. This is one of many WordPress optimization features available in the Performance tab.

Why You Need It

The WordPress Font Library (added in WP 6.5) allows users to upload and manage fonts in the admin. This can load unexpected fonts and increase page size.

How to Enable this Feature in WordPress

1. 1
   Step 1

   Navigate to Settings

   Click into the Classic Monks plugin settings in your WordPress dashboard.

2. 2
   Step 2

   Go to the Performance Tab

   Click on the Performance menu, then click the WP Optimizations subtab.

3. 3
   Step 3

   Enable the Feature

   Toggle on the feature.

   

4. 4
   Step 4

   Save Changes

   Click Save Changes.

5. 5
   Step 5

   Test

   Clear your browser cache and visit the frontend. Verify the feature is working as expected.

Configuration Options

No nested options.

What Gets Affected

• The feature behavior: enabled as configured
• The site performance: improved as described

What Does NOT Get Affected

• The WordPress admin: unchanged
• The site content: unchanged
• The plugin functionality: unchanged

Common Use Cases

Sites with custom fonts

If you’re using custom fonts (self-hosted or from a theme), the WordPress Font Library can conflict. Disabling it prevents conflicts.

Minimal admin experience

The Font Library is a new feature that may confuse admins. Disabling it keeps the admin simple and focused.

Developer integration

This feature registers 1 WordPress hook in disablers.php:

Actions:

• init calls cm_disable_font_library() (Deregisters font library assets)

// Hooked in disablers.php
add_action( 'init', 'cm_disable_font_library' );

The feature modifies WordPress behavior by registering or removing hooks. Disabling it reverses those changes and WordPress returns to its default behavior.

Before you enable this feature

1. Test on staging first to verify no conflicts with your theme or other plugins
2. Check dependent plugins that may rely on the functionality being modified
3. Monitor after enabling for any unexpected behavior on the frontend

How it works under the feature

This feature runs during the WordPress initialization phase. When enabled, its PHP code registers hooks that modify specific WordPress behaviors. The changes are non-destructive and reversible.

No database schema changes are made. The feature state is stored as a boolean value in the wp_options table and can be toggled at any time from the admin settings.

Troubleshooting

2 problems and how to fix each one.