Thank you very much for this neat userscript. It is very attentive to give users a choice whether they want to use an add-on or a userscript. I like this script and the add-on alike, above all because it only translates short URLs when hovering with the mouse over a link and not automatically scanning each whole page. Because this would be a system hog. The mouse over solution is best. And for those occasions when you have a page full of short URLs and want turn all short links into long URLs at the tip of your fingers, there's a bookmarklet from 'www.longurlplease.com' to do the job.

Thanks =)