Its been quiet sometime that I have been using Chris Pederick’s web developer tools. From my personnel opinion, I think he has created an awesome set of plugin tools for Firefox browser. Visiting Chris Pederick’s website lately, I saw he has added one more web development tool known as “User Agent Switcher”.

I am using User Agent Switcher for developing mobile web applications and has also been recommended by the Mobiforge as essential tool for mobile phone web application development. There is also a config file that can be downloaded and imported into the user agent switcher for more correct UA strings for few common phones  and as per W3c default delivery context.

Please note: Switching the user agent does not make the browser render a page like another browser and is not guaranteed to fix issues with every site.

Safari user agent switcher plugin can be found here http://mobiforge.com/designing/blog/user-agent-switcher-safari-4. There’s another switcher that is quiet used amongst the developers is the “Modify Header” plugin in Firefox.

If there is any issue in using Chris Pederick’s Switcher tool, I would suggest checking out his FAQ page for switcher tool.