* Adobe Flash is completely history
* supercookie protection
* new bookmark handling and features
MFSA 2021-03 (bsc#1181414)
* CVE-2021-23953 (bmo#1683940)
Cross-origin information leakage via redirected PDF requests
* CVE-2021-23954 (bmo#1684020)
Type confusion when using logical assignment operators in
JavaScript switch statements
* CVE-2021-23955 (bmo#1684837)
Clickjacking across tabs through misusing requestPointerLock
* CVE-2021-23956 (bmo#1338637)
File picker dialog could have been used to disclose a
complete directory
* CVE-2021-23957 (bmo#1584582)
Iframe sandbox could have been bypassed on Android via the
intent URL scheme
* CVE-2021-23958 (bmo#1642747)
Screen sharing permission leaked across tabs
* CVE-2021-23959 (bmo#1659035)
Cross-Site Scripting in error pages on Firefox for Android
* CVE-2021-23960 (bmo#1675755)
Use-after-poison for incorrectly redeclared JavaScript
variables during GC
* CVE-2021-23961 (bmo#1677940)
More internal network hosts could have been probed by a
malicious webpage
* CVE-2021-23962 (bmo#1677194)
Use-after-poison in
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaFirefox?expand=0&rev=888
* Firefox 84 is the final release to support Adobe Flash
* WebRender is enabled by default when run on GNOME-based X11
Linux desktops
MFSA 2020-54 (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-2020-26972 (bmo#1671382)
Use-After-Free 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-2020-26975 (bmo#1661071)
Malicious applications on Android could have induced Firefox
for Android into sending arbitrary attacker-specified headers
* CVE-2020-26976 (bmo#1674343)
HTTPS pages could have been intercepted by a registered
service worker when they should not have been
* CVE-2020-26977 (bmo#1676311)
URL spoofing via unresponsive port in Firefox for Android
* CVE-2020-26978 (bmo#1677047)
Internal network hosts could have been probed by a malicious
webpage
* CVE-2020-26979 (bmo#1641287, bmo#1673299)
When entering an address in the address or search bars, a
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaFirefox?expand=0&rev=880
