Firefox with Stylish: The Gmail Redesigned user style—which requires the Stylish extension to use—skins Gmail with an attractive, well laid-out, and completely overhauled look. Everything in the Gmail Redesigned interface is darker and a touch sleeker than the default Gmail interface, which hasn’t changed all that much since Gmail launched four years ago today. Right now the developer is issuing updates to this style almost every day. Once Gmail Redesigned is complete, we hope to add it to the rest of the Gmail skins in an upcoming release of Better Gmail.

This is a really neat Firefox plug-in that will allow you to see Craig’s list thumbnails without having to click on the link and go inside.

http://www.craigstoolbox.com/post/Ad-Preview-Extension-for-Firefox.aspx

All you need to do is click on the download button and install like any other Firefox extension.

Once you have the Firefox extension enabled.  Due to any Craig’s list posting and you can see all the images directly underneath the link to the post.