All of these are excellent scripts, and many of them are available in the Better Flickr extension from Gina Trapani at Lifehacker, but my favorite by far is the Flickr Follow Comments plugin which makes that atrocity of a page into something sane and manageable.
Flickr, are you listening? The “Comments You’ve Made” page sucks hard. (Otherwise, I love Flickr to death, and everything else is somewhere in the range of pretty good to awesome.) :-)
Userscripts are add-ons for the Firefox web browser, which dynamically enhance the communication and visualization of certain websites.
To be able to use these scripts you need to have installed greasemonkey on Firefox – this enables and manages the userscripts. If you have greasemonkey in Firefox you can install and use these userscripts instantly.