As you know WordPress has released new version 5.8 with some extra features like Widget block editor, menu bulk remover...etc. Widget block editor is nice feature to manager the widget by a single save button. But If you still want to use the old classic editor for widgets then you can easily replace the WordPress block editor by using the hooks of wordpress.
To rollback the old classic widget editor you have no need to use any extra plugin, just paste the below code into your theme function.php file.
// Disables the block editor from managing widgets in the Gutenberg plugin. add_filter( 'gutenberg_use_widgets_block_editor', '__return_false' ); // Disables the block editor from managing widgets. add_filter( 'use_widgets_block_editor', '__return_false' );
And also you cad add given below code into your theme function.php file to remove the widget block editor.
add_action( 'after_setup_theme', 'disable_widget_block_editor');
function disable_widget_block_editor() {
remove_theme_support( 'widgets-block-editor' );
}
All is done!
