You can't install an Android App on your PC (that's isn't Firefox's fault, that's just not possible). However, if you want to replace igoogle, there are a few things you can do: You can install an addon, go to addons.mozilla.org and install an addon that does what you want. Find a website alternative to iGoogle. In the future we are working on getting some improvements in Firefox that will give you more control over creating features like this :) look forward to those soon!