Remembers which version of Django docs you've selected.
Install the extension, then visit the Django documentation site at https://docs.djangoproject.com/ and select which version you're working on at the bottom right, as normal. This extension will now remember the setting, and if you view docs for a different version, you'll be redirected to the version you've chosen.
In order to temporarily disable this behaviour, click the extension's icon at the top right of your Chrome window and press the "Disable" button.