Just gotta applaud the Mozilla development guys – for the past while Mozilla can, if you tell it to, resize images on the fly so they fit the available view space.
You’ll need to do this:
Click View|preferences from the menu.
Choose the Category ‘Appearance’ on the left.
Click the ‘Enable automoatic image resizing’ tickbox.
Click OK.
Bah! Galeon 1.2.9 doesn’t support image resizing even though I’m using Moz 1.3!