Security update for MozillaFirefox (important)

This update for MozillaFirefox fixes the following issues: - update to Firefox 52.6esr boo1077291 MFSA 2018-01 Speculative execution side-channel attack "Spectre" MFSA 2018-03 CVE-2018-5091 bmo1423086 Use-after-free with DTMF timers CVE-2018-5095 bmo1418447 Integer overflow in Skia library during...