Southern writes:  

Do you want an easier way to see a web page’s html tags without viewing the source code in a separate window? Now you can view the web page and tags combined in the same window using the X-Ray extension for Firefox.

more: HowToGeek

D/L X-Ray extension

It’s official: Firefox 3.5 has been released! Grab it from the Mozilla website before it becomes overloaded by eager Firefox aficionados!

Firefox 3.5 is the best performing browser Mozilla has ever released and delivers radically improved JavaScript performance, a new Private Browsing mode, native support for open video and audio, and Location Aware Browsing. The newest version of Firefox is more than two times faster than Firefox 3 and ten times faster than Firefox 2 on complex websites. With extensive under-the-hood work to support new technologies, Firefox 3.5 is the most powerful and complete modern browser and helps upgrade the Web experience.

Read the entire Press Release