A user agent is a client application most commonly used to access the World Wide Web. Web user agents range from web browsers and e-mail clients to search engine crawlers (“spiders”), as well as mobile phones, screen readers and braille browsers. If you do web development or cannot access a page because it asks for a certain user agent you might want to test how a site reacts to a user agent string other than which your default...

Mozilla’s mobile browser fennec uses the same code as in Firefox 3.1 and is currently being released for Nokia N800, N810,N900 Internet Tablets. The code can also be run on desktop PCs like Windows, Mac OS, and Linux in order to involve a wider community of developers. Mozilla might not be the first to offer mobile web browsing but considering its share in the web browser market it holds a promise to offer users a better mobile web...