I don't know what just happened, but suddenly Google-based features aren't working. Google doesn't show suggestions as I type. On the results screens, the little Google logo in the upper-left corner is gone. Gmail doesn't load, and has a completely empty progress bar. Searching for anything on a site with Google Custom Search brings a blank results screen. I think I briefly had YesScript enabled accidentally, so I uninstalled it, but after Google briefly offered suggestions for about 5 seconds after restarting the browser, it's back to the same. A clean reinstall of Firefox did absolutely nothing. What is going on?