This update for MozillaFirefox to the ESR 52.8 release fixes the following issues: Mozil to Firefox ESR 52.8 Security issues fixed: - MFSA 2018-12/CVE-2018-5159: Integer overflow and out-of-bounds write in Skia - MFSA 2018-12/CVE-2018-5158: Malicious PDF can inject JavaScript into PDF Viewer - MFSA 2018-12/CVE-2018-5168: Lightweight themes can be installed without user interaction - MFSA 2018-12/CVE-2018-5150: Memory safety bugs fixed in Firefox 60 and Firefox ESR 52.8 - MFSA 2018-12/CVE-2018-5155: Use-after-free with SVG animations and text paths - MFSA 2018-12/CVE-2018-5183: Backport critical security fixes in Skia - MFSA 2018-12/CVE-2018-5157: Same-origin bypass of PDF Viewer to view protected PDF files - MFSA 2018-12/CVE-2018-5154: Use-after-free with SVG animations and clip paths - MFSA 2018-12/CVE-2018-5178: Buffer overflow during UTF-8 to Unicode string conversion through legacy extension