Firefox Add-on for Website Changes
I need some help here with this one. Back last year when everyone was looking for a Wii, there was a Firefox add-on that monitored for website changes (much like consolewatch.com only quicker). Does anyone know which that is and how it works?
Or, more specifically - I'm looking for a Xmas gift that is currently out of stock. What I'd like is an add-on that would monitor the website for a change in stock and then email me at work (don't have Firefox at work) - anybody know of any add-on that would do this?