[SECURITY] Fedora 27 Update: icecat-52.5.3-2.fc27

GNUZilla Icecat is a fully-free fork of Mozilla Firefox ESR. Extensions included to this version of IceCat: LibreJS GNU LibreJS aims to address the JavaScript problem described in Richard Stallman's article The JavaScript Trap. SpyBlock Blocks privacy trackers while in normal browsing mode, and a...