The chat box moved to the bottom for everyone. The font size is probably more particularized to you.
Page Zoom
Page Zoom is a new feature in Firefox 3, which allows you to increase or decrease the size of web pages to improve readability.
How To Use Page Zoom
Keyboard
* To zoom in, increasing the page size, press and hold commandCtrl while pressing +.
* To zoom out, decreasing the page size, press and hold commandCtrl while pressing -.
* To reset page size back to normal, press and hold commandCtrl while pressing 0.
Mouse
If your mouse has a scroll wheel, press and hold Ctrl while scrolling up to zoom in and down to zoom out.
Menu
1. At the top of the Firefox windowOn the menu bar, click the View menu, then go to Zoom.
2. Select either Zoom In, Zoom Out, or Reset for their corresponding action.
* You can choose Zoom Text Only, which will make the controls only apply to text, not images.
Mouse
If your mouse has a scroll wheel, press and hold Ctrl while scrolling up to zoom in and down to zoom out.
Not sure if this has been addressed already but you need to add Sh-thead to the filter in chat.
DUDE wtf?
What do you call a guy with poop on his face???
There were some style updates, yes. Most notably was the large grey box that used to be below the logo.