Firefox has been my preferred browser for some time. I appreciated the built-in pop-up blocking and tabs, though IE also added these features starting with IE 7. Firefox also has some useful add-ons such as Ad-block Plus and my Yahoo toolbas. My laptop came with IE8 and Google Chrome pre-installed, so I tried out Google Chrome and I appreciate its simplicity. Now it seems like both IE and Firefox wish to emulate the simplicity of Google Chrome. Firefox 4 posed a problem with the Yahoo toolbar. I avoided downloading Firefox 4 until a "Yahoo optimized" version became available. My toolbar is now compatible.
