Thanks fellow oDesker
I'd give it a try if I feel desperate enough, but I made a principle of not installing add-ons which were not reviewed by Mozilla.
I'll check LinkJumper's page every now and then to see if it gets reviewed some time in the future.
In the meantime, I ran a new google query with the keywords I took from your tip, and found this one:http://commons.oreil...ove_URL_Redirections
This one does the trick, but it may break google sometime in the future. I'll pass that stream then I suppose.
edit: typo fix