I was thinking we might aught to ask dev-webdev, but I believe most sites have dropped support for IE < 8. Mozorg does maintain limited support for them, but really only so that the site works well enough for users of those browsers to download firefox. That being said, this feature would probably help someone download Firefox if they could see the page in their language.

I'm thinking that this will only be an issue if they're actually browsing the site in an old non-en-US browser, and I don't think we're too worried about that. That can't be many users, and hopefully they're only here to download Fx :)

I'm wondering what @chrismore and Gareth think.