If you’d prefer your CPU cycles be spent rendering web pages instead of animating tabs, do this in Firefox 4:
- Type “about:config” into your address bar, then hit Enter
- In the “Filter” field, type “browser.tabs.animate” or any substring thereof
- Set the value for for the matching “Preference Name” that comes up to “false” by double clicking the “Value” column
- Close the about:config tab
And that’s it. Screenshot below:
The sheer number of settings customization in Firefox continues to be one of the biggest advantages of using it.