Profile-sync-daemon

Has someone test this program? It seems reduce wear to physical drives and speed-up browser. At least Icecat is found in the list of the supported browsers. You can't install it via the default repos but there is for Ubuntu 14.04 based on distros: https://launchpad.net/~graysky/+archive/ubuntu/utils and more info: https://wiki.archlinux.org/index.php/Profile-sync-daemon