How to completely uninstall Magento extension
- Disable the extension. See the How to disable Magento extension page for reference.
- If the extension contains any dependent MySQL table, remove it.
- Delete the config record for the module you want to delete from the
core_recoursetable in the database.The extension_name is the same as the folder
DELETE from `core_resources` WHERE code LIKE 'extension_name';
- Clear the websites cookies. The extension shouldbe completely uninstalled.