Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

- Firefox Extended Support Release 78.4.0 ESR
* Fixed: Various stability, functionality, and security fixes MFSA 2020-46 (bsc#1177872, bsc#1176756)
* CVE-2020-15969 Use-after-free in usersctp
* CVE-2020-15683 Memory safety bugs fixed in Firefox 82 and Firefox ESR 78.4
* Fixed: Fixed legacy preferences not being properly applied when set via GPO

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
bnc#1177872
VUL-0: CVE-2020-15254,CVE-2020-15680,CVE-2020-15681,CVE-2020-15682,CVE-2020-15683,CVE-2020-15969: MozillaFirefox: Update to 78.4.0 ESR / 82.0
bnc#1176756
VUL-0: CVE-2020-15675,CVE-2020-15677,CVE-2020-15676,CVE-2020-15678,CVE-2020-15673: MozillaFirefox: Update to 78.3.0 ESR / 81.0
Selected Binaries
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