Sometimes it's where Firefox adheres to specifications, while Chrome doesn't. As an example, https://www.just-eat.no https://www.just-eat.no Chrome treats the

Sometimes it's where Firefox adheres to specifications, while Chrome doesn't. As an example, https://www.just-eat.no https://www.just-eat.no Chrome treats the numeric box as text and accepts a postcode starting with 0. Firefox correctly implements the numeric type, which unfortunately makes the site unusable for all Firefox users in Oslo. They get none of my business because I'm not willing to switch to Chrome just to order from them.