Testing jQuery

x.x.x.exe on a PC or Firefox x.x.x.dmg on Mac), Firefox will be running. 
Installing Firebug 
To install Firebug, use Firefox to navigate to http://getfirebug.com, and click the “Install Firebug x.x for 
Firefox” button. This takes you to the Firefox add-ons directory entry for Firebug. Once there, click the 
“Add to Firefox” button, which will bring up the installation dialog in the browser (see Figure 1-1). Click 
Install Now, and wait for the add-on to install.  Then restart Firefox. 
 
 
Figure 1-1. The installation dialog for Firebug 
www.freepdf-books.com

---

CHAPTER 1 
■
 INTRODUCING JQUERY 
 
6 
After restarting Firefox, an icon will appear in the status bar that looks like a lightning bug. Clicking 
that icon will bring up the Firebug controls, starting with the console (see Figure 1-2). 
 
Figure 1-2. The Firebug add-on opens to the console panel 
 
■
 Note Firebug is useful for much more than JavaScript debugging. It's an invaluable addition to any web 
developer's arsenal. To learn more, visit