Install
This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.
Install straight from GitHub with WP-CLI:
wp plugin install https://github.com/humanmade/opt-in-fullscreen-mode-dangit/archive/refs/heads/master.zipNo built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
This simple plugin prevents WordPress 5.4 from opening the block editor in full screen mode by default for new users and sessions on different devices or incognito windows without disabling the feature altogether.
The change was added very late in the release cycle without a proper way of changing the default setting, the suggested fix just disabled the setting entirely:
https://make.wordpress.org/core/2020/03/03/fullscreen-mode-enabled-by-default-in-the-editor/
Made with ❤️ by Human Made