*** Farky is no longer being updated, and may not work with the current Fark site ***
Farky aids reading Fark.com by adding a number of tools. You can filter out headlines you don't want to see, and you can tag headlines you're interested in. You can easily see when there are new comments in a thread, and jump directly to them. Comments from people you like can he hilighted with a color you choose.
Check out the extension previews for more details.