how to quickly access web browser's address box

Mac shotcut is Command + L

Note: All shortcuts that use Command apply only to Macs.

• Firefox: Control+L, Alt+D, F6 (Windows); Command+L (Mac)
• Chrome/Safari/WebKit: Control+L, Alt+D, F6 (Windows); Command+L (Mac)
• Internet Explorer: Control+L, Alt+D, F6
• Opera: Control+L, Alt+D, F6/Command+L

Here's an added bonus. If your browser has a separate search box

• Firefox: Control+K (Windows); Command+K (Mac)
• Safari: Command+Option+F (Mac)
• Internet Explorer: Control+E
• Opera: Control+E (Windows); Command+E (Mac)

Reference:

http://lifehacker.com/5803849/access-your-browsers-address-and-search-bar-via-the-keyboard?disableinsets=on&utm_expid=66866090-49.VYy4WCNHSyuP6EmjnM93MQ.2&utm_referrer=https%3A%2F%2Fwww.google.com%2F