I think it is two reasons 1) Sometimes companies go out of business or stop supporting\updating things. If you build critical processes around these outdated t

I think it is two reasons 1) Sometimes companies go out of business or stop supporting\updating things. If you build critical processes around these outdated tools, it can be very difficult to change. 2) Users aren't savvy enough to know when to use Chrome, Firefox or IE. Some aren't even savvy enough to call things the correct names (looking at you Mozzarella Foxfire). So they just settle on on a lowest common denominator.