Use the classic widgets screen

Appearance > Widgets and the Customizer go back to the classic widgets, as with the Classic Widgets plugin.

Type PHP
Runs Everywhere (runs as WordPress loads)
Tested with WordPress 7.1

PHP

<?php

add_filter( 'use_widgets_block_editor', '__return_false' );
add_filter( 'gutenberg_use_widgets_block_editor', '__return_false' );

In these packs

Turn off what you don’t use: Each of these replaces a small plugin: no comments, classic editor, no feeds, no search and more.

Install it in one click

It's already in the Snipfire plugin's library. Enter your site's address and it opens there, ready to install. It arrives switched off, and Snipfire checks the code and test-loads your site before you switch it on.

Needs Snipfire on that site and you logged in as an administrator. Your address stays in this browser; we don't see it. Get Snipfire free

Or add it by hand

Click + New and choose PHP.
Paste the code and give it a name.
Where: Everywhere (runs as WordPress loads).
Save and switch it on.

Works in any snippet plugin, or a child theme's functions.php. Without the safety net, though.

In these packs

More from this pack

Move your snippets over this afternoon.