Try downloading the above QR code for the foursquare beta app with this method.
Whenever we post a link about an app on BlackBerry Cool that you can download OTA, I’m sure there are many of you who pick up your BlackBerry and hit the site by typing it in your web browser. There is a much more fun way of downloading apps OTA and it involves 2D barcodes, or QR codes.
To do this, get a plugin that generates a QR code from a web link. With FireFox, a good plugin to use is Mobile Barcoder. Once you’ve downloaded and installed the plugin, it allows you to generate a qr code from a link with a simple right click.
Now that you can generate QR codes from links, you just need to scan them on your BlackBerry. For a good barcode scanner, see the BlackBerry Cool guide. I suggest adding the barcode scanner to a Convenience Key, so that with a touch of a button you can be downloading any app off the site.
Try it out with the foursquare beta app found at http://foursquare.com/blackberry/beta-pacman