Simplify the following text for a Grade 12 native English-speaking person.
Original: The organization sets the policies that govern development , operate important things that keep Mozilla working and control trademarks and other intellectual property . It owns two taxable for-profit subsidiaries : the Mozilla Corporation , which employs several Mozilla developers and sets releases of the Mozilla Firefox web browser , and Mozilla Messaging , Inc. , which creates the Mozilla Thunderbird email client .
Simplified: The Mozilla Foundation owns the Mozilla trademarks and other intellectual property , which it licenses to the Mozilla Corporation .