After the latest upgrade to Fedora 15, Firefox 5, and Gnome 3 (more about that in later posts), there are several annoying features to remove and customize. One common theme creping in again and again is animated windows, tabs and the like. It adds nothing be distractions. Luckily, it can be configured:
In Firefox 4 and later, type in about:config in the URL bar. Search for browser.tabs.animate on the filter line, and switch that setting to off.
Thanks to the Firefox Support Site for this tip.