Pseudo Browser LE for Adobe Fireworks CS3
Pseudo Browser LE is the Fireworks MX version of Pseudo Browser Fireworks extension that was (and can be still) found within Keap 1.0 for Fireworks 4.x. Even the Lite Edition has more capabilities than the standard 4.x version, with MAC screenshots of popular browsers at ~800×600 pixels.
What does Pseudo Browser do? Well, to those of you unfamiliar with previous versions, it places a screenshot of a browser of your choice within a new window to help you when creating site mockups and compositions, so you can see exactly what the final effect will be.