Web Application for rendering multiple urls as a grid

Is there any web application to render multiple URLs in a single page/window as a grid? I want to check some updates injected by ajax. These updates reflect on multiple pages (10+ pages) at the same time. So keeping track of all pages at the exact moment is not practical with tabs/multiple windows. Is there any Web Applications, Extensions, Add Ons, or even desktop software for this purpose?

I want it to look like you are watching at multiple monitors with each monitor on different page.
See image given below:

enter image description here Instead of virtual desktops, I want URLs to be rendered.

Any help?