Switching - I wouldn't recommend it. However, having both installed does make sense. I make sure to install Firefox AND Chrome on every PC/laptop in the home. Firefox is great for casual browsing, but when in a hurry, I find that Chrome is the better browser to use. Especially on older PCs, it starts up much faster. You might not be as safe without the must have add ons, but if all you need to do is check your email, weather, bank account, etc, its worth the minimal risk.