Android Tablet - Download PDF and open it on browser Device - Samsung Galaxy Tab 10.1 / Android 4.0.3

I have tested Samgsung Galaxy Tab for document download such as PDF from web site with many browsers. Most of them just download it to somewhere in the device and I have to go to notification window(Right and bottom) and click it again to open it. Some browsers ask me to save and ask me again to open it.

Is there browser or a way that opens it when I download it? iPad works that way. iPad opens the file right away when I download a document.
Have you tried pdf.js extension for Firefox mobile ?

It's a bit slow and unstable for now, but it should work as expected.