The Classic Widgets plugin is a WordPress plugin that allows you to use the classic widgets interface in place of the new block-based widget editor introduced in WordPress 5.8. If you prefer the old widget interface or have a website that relies on plugins or themes that are not compatible with the new editor, you can use the Classic Widgets plugin to keep using the old widget interface.

Here are the steps to install and use the Classic Widgets plugin:
Install the plugin: Go to Plugins > Add New in your WordPress dashboard and search for "Classic Widgets." Install and activate the plugin.
Configure the plugin: In the WordPress dashboard, go to Appearance > Widgets. You will see the new block-based widget editor. At the bottom of the page, you will see a link that says "Switch to classic widgets." Click on this link to switch to the classic widgets interface.
Use the classic widgets: When you switch to the classic widgets interface, you will see the familiar list of widgets on the left-hand side and the widget areas on the right-hand side. You can use the widgets as you normally would, dragging and dropping them into the widget areas.
Preview and publish: Once you've added your widgets to the widget areas, preview your website to see how it looks, and then click on "Publish" to make the changes live on your website.
That's it! With the Classic Widgets plugin, you can continue to use the classic widget interface in WordPress and maintain compatibility with older plugins and themes.
