Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Mozilla Firefox 86 was released today with Total Cookie Protection, a new privacy feature that prevents web trackers from keeping tabs on your activity while browsing the web.
Windows, Mac, and Linux desktop users can upgrade to Firefox 86 from
. Firefox will automatically check for the new update and will install it if available.
With the release of Firefox 86, all other Firefox development branches have also moved up a version bringing Firefox...