Some license agreements grant considerably more rights than most EULAs provide. A free software license grants the right to modify and redistribute the licensed software for any purpose. Mozilla Corporation enforces trademarks and claims the right to deny the use of the name “Firefox” and other trademarks to unofficial builds such as Ubuntu’s Firefox. Now you need to accept EULA before using Firefox under Ubuntu.
Google has removed an open-source project that enables the proprietary CoreAVC high-definition video decoder to run in Linux.