When using Firefox Panorama (in day to day use, I still call it tab candy), I find the zooming in and out to be rather annoying as it looks a bit choppy on my laptop. However, a quick trip to the configuration settings solves this quickly.

Open a new tab and go to location


Now go to the key browser.panorama.animate_zoom and double click it to change it to false. No need for restarting or anything similar, the change immediately takes effect. Enjoy the quicker experience!