There's nothing to set up for the "easy voting" trick, if you're using iPad.
The firefox hack was just to spoof your PC to making your browser read the mobile site, as if it's reading it from an iPhone, or an iPad. I've got an iPad 2, and the iPhone & iPad versions of the site are the same. No captcha bullshit required.
However, for a more "efficient" solution, if one were to combine that method with a script/macro...
You can't run something like that from the iPad. iPads and Macs are not the same thing. Basically iPads are just a big screened iPhone.