There are so many great FireFox extensions to discuss that picking one is a tough call. I have a number of sites that I need to open every day and because I this my current extension of choice is Linky. Linky just streamlines everything I have to do and makes life easier. Gemal’s Psyched Site describes Linky this way:

Linky will increase your power to handle links. It will let you open or download all or selected links, image links and even web addresses found in the text in separate or different tabs or windows. You will just need to right click any link or web address, select the Linky menu item and choose the desired action. You can even specify what option you want to see available in the Linky menu through its preferences.

Popularity: 36% [?]