I just switched to Firefox a few weeks ago. I was worried that I wouldn't like it because I was so used to IE but it is very easy to use and get used to. All you need to do is go to the Mozilla site and downland it and run it.
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226