Is it an empty rectangle in the printout (or in the preview overlay when you tell Firefox to Print)? Can you tell whether the region that doesn't print is in a separate frame (embedded document) -- here's how to check: * right-click that part of the message and look for "This Frame" on the context menu Note: if your email site substitutes its own right-click context menu for Firefox's, hold down the Shift key when right-clicking to bypass the override.