This update for MozillaFirefox fixes the following issues:
- Firefox Extended Support Release 78.6.0 ESR * Fixed: Various stability, functionality, and security fixes MFSA 2020-55 (bsc#1180039) * CVE-2020-16042 (bmo#1679003) Operations on a BigInt could have caused uninitialized memory to be exposed * CVE-2020-26971 (bmo#1663466) Heap buffer overflow in WebGL * CVE-2020-26973 (bmo#1680084) CSS Sanitizer performed incorrect sanitization * CVE-2020-26974 (bmo#1681022) Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free * CVE-2020-26978 (bmo#1677047) Internal network hosts could have been probed by a malicious webpage * CVE-2020-35111 (bmo#1657916) The proxy.onRequest API did not catch view-source URLs * CVE-2020-35112 (bmo#1661365) Opening an extension-less download may have inadvertently launched an executable instead * CVE-2020-35113 (bmo#1664831, bmo#1673589) Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6