I was bored this weekend and wrote a little firefox extension called "popTart" that I plan on expanding upon. Its only 5K at the moment, very small. The first two features are:
1. When you enable poptarts's frame it will load an iframe at the bottom of your browser so when you click on a news item it loads in the frame below, not a new tab or a new window. Allowing you to stay on the same page and read the article while you decide if you want to digg it or not
2. Go NAKED! The naked digg option makes everything invisible except the main page of the news titles and summaries. Notice I left the google adsense bar. I felt it would be a dis-service to the developers who work hard on the site not to have people clicking on the banners. So I have no plans on making the google ads invisible.
I plan on adding support for Fark and Slashdot in the near future as well as being able to use your right/left arrow keys to page through Digg (thanks for the suggestion Emil!)
Here is where you can install:
Here are some screenshots: