How configure magento such that the category url does not have “.html” in the url?
If you want to remove .html from all Magento’s category URL then Follow the below steps
Go to System -> Config -> Catalog -> Search Engine Optimizations tab
Delete “.html” from Category URL Suffix.
Go to System->Index Management
Reindex “Catalog URL Rewrites”
If you want to remove .html from all Magento’s product URL then steps will same. Except
2. Delete “.html” from Product URL Suffix