Hyperlinks on mouseover tooltips - Firefox

(Similar to Opera)

• install Greasemonkey addon
• install Link Tooltip script, mirror link (rename to .js)

Note: This script conflicts with WYSIWUG editors (like google sites, blogspot editor) and adds a title (url of the link) to the links, each time the editor is loaded. Add these sites in the list "excluded sites" of the script from Greasemonkey preferences to avoid this.