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Most Recent Update: 2013-03-26: If you found this page by searching, the HTML5 email address regexp you are looking for is: /^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,253}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,253}[a-zA-Z0-9])?)*$/ (This should be all one line.) This regexp works unchanged in either Perl or JavaScript. Version history: this version improves upon the pr

I’ve been following bug 366797, and discussions in mozilla.dev.security, with great interest, and I’ve been thinking about this for some time now. Here’s my (slightly long) attempt at a unified and consistent proposal for changing the way the location bar works for Firefox 3. In the original design of the web, the URL was supposed to be an implementation detail. That hasn’t turned out to be the ca