I'm inside a Fedora 24 box, guest OS of VirtualBox . In Settings->Appearance->Fonts tab, I enabled custom DPI to an 85 value. Happen the following: - Nautilus, when I search a file by typing the name, randomly Nautilus crash. - Firefox, opening the profile tool webgrind (PHP, python), random memory leaks cause the VM and all the applications inside it to freeze.
Sorry but I don't see any connection between those events. You would have to give us a plausible explanation as to why and how these events could be connected or even related...