Solution: Add FireFox to the DEP (Data Execution Prevention) whitelist.
- Control Panel -> System -> Advanced
- Click "Settings"
- Click the radio button that says "Turn on DEP for all programs... except..."
- Click the "Add" button
- Search for the FireFox.exe, usually C:\Program Files\Mozilla\FireFox\FireFox.exe
- Click "OK"
Note: I work on ASP.NET crap every day and use as many online services I can because I use 2 computers, one at work and one at the home office. I typically have 2 gmails open, RememberTheMilk and several ajaxified applications that I work on daily, plus other viral, "must see" websites, blogs, and news sources.