From reading the logs for my mapping site, I noticed that the application was blowing for many addresses outside the United States. I did a little more research, and discovered that the bug was in handling some special characters, like "ø, á, í, é, È, ž, ù, ý".
As a test case, I created a map of points from around the world that I found in the logs. Each of these queries caused an error.
Customize Firebug shortcut keys
For a web developer, Firebug is indispensable for debugging javascript and CSS. Like any good debugger, it supports shortcut keys to control the execution (step in, step over, step out, and resume). Firebug's keys (by default) are as follows:
However, these keys are not configurable. They may conflict with other shortcut keys in your system. They may not be the same as other keys you have already learned (eg, the keys in Eclipse). In my case, I found myself reaching for F5 - F8, which are the shortcut keys for Eclipse. Also, the Firebug keys conflict with the default Exposé keys in OS X. (Yes, I know I could change those shortcuts, but I've grown accustomed to their defaults.)