This user script detects thumbnail pages. It strips all but the thumbnails, filters unwanted links and adds options.

Update, 2008-04-13

• Delete bug fixed.
• Link color bug fixed.
• Opacity bug (Firefox 3) fixed.
• Option to hide visited galleries.
• Minor improvements.

Update, 2006-11-28

• Spacebar starts slideshow on image page.

General

• Keep galleries you like in a collection.
• Visit random gallery from your collection by clicking the button or by using the menu option under Tools, User script command.
• Scale thumbs down to a custom size (optional).
• Banners are filtered (images in a link with a width/height ratio over 1.8).
• Images under the minimum size of 50px are filtered.
• Visited links (thumbnails) are semi transparent.
• Page type (gallery, images, videos) is prepended to the title.

Gallery

• Try to use open URLs embedded in the link URL (on link click for link, page load for all links or using the button for all links) (optional).
• Filter links matching a custom regular expression.
• Red image border indicates internal link, green image border indicates external link.
• Yellow background indicates that the current page is in your collection.
• Links are opened in a new tab.

Images page

• Spacebar starts slideshow.
• Clicking a thumbnail will open the large image in the same page (on top of the thumbnails).
• Large image is scaled down if it doesn't fit.
• DownThemAll friendly.