With Dead Mouse, you don’t need a mouse to open any link on a web page, just use your keyboard.
Once the add-on is installed, just start typing the first few characters of any link on a page and all the matching hyperlinks will begin to jiggle. Keep typing the characters until the jiggling list has just one matching link and press Return to open that particular link.
You can use the tab key to cycle through the different matches and Press Ctrl + Enter to open a link in a new tab.
Dead Mouse may not play nice with websites that already support keyboard shortcuts, Gmail for example, but you do have an option to disable Dead Mouse on these domains.