Argh. In the newest version of Firefox, Gmail puts its content in popups, and I can’t find a way to turn off that behavior.

Later: It only did that once, the first time I loaded Gmail after updating Firefox.

I eventually got around to ordering my poster from Zazzle. I feared that the colors might be dull, or that JPEG compression would spoil the detail, but it’s even more crisp and gorgeous than I imagined.