We have several small networks, some of which have only four systems that are usually a mix of Windows 7 and CentOS 6 and CentOS 7 machines. All of these systems are Internet connected and updated regularly when yum finds packages available. Information about one of the CentOS 6 machines is included below. This system experienced a Firefox issue. [user at computer]$ uname -a Linux computer 2.6.32-754.3.5.el6.x86_64 #1 SMP Tue Aug 14 20:46:41 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux [user at computer]$ Several weeks ago, one of the Firefox updates did something unusual. It changed the browser-stored home page to https://www.centos.org/ from the original home page file:///usr/share/doc/HTML/index.html. This original home page had been in place since 2014, and had survived all Firefox updates for a little over four years. Last week, someone left one browser running and the system went into power save mode. To wake the system up we used the standard method of a quick push of the power button on the front of the Dell tower system. Although the system seemed to be running, the monitor and mouse never came to life. We also could not ssh into the system from any other computer on the network. We decided to use a steady push on the power button to shut the system down. After powering up again, the system seemed to run normally, but the browser home page was back to file:///usr/share/doc/HTML/index.html. Has anyone else experienced such an issue with Firefox recently?