Everything in the list below is freeware: free of use and free to download.

• You need Firefox
• You need the Grease Monkey plugin
• A grease monkey script to directly access darckr from flickr
• A grease monkey script to insert a duplicate "add comment" form above the comments. This quickens the insertion of comments on other people's pages
• Darckr works very well with the Flickr Refer Comment Script that inserts "where you come from" in comments