This update for MozillaFirefox, rust-cbindgen fixes the following issues:
MozillaFirefox was updated to Extended Support Release 91.2.0 ESR
MFSA 2021-45 (bsc#1191332)
CVE-2021-38501: Memory safety bugs fixed in Firefox 93 and Firefox ESR 91.2
Firefox Extended Support Release 91.1.0 ESR
MFSA 2021-40 (bsc#1190269, bsc#1190274)
mk: URL scheme could load Internet ExplorerFirefox 91.0.1esr ESR
Firefox Extended Support Release 91.0 ESR
MFSA 2021-33 (bsc#1188891)
rust-cbindgen was updated to 0.19.0.