Released in 2020, it is the successor to macOS Catalina. More information about Mozilla moving some Mac users to the ESR build can be found online. macOS Big Sur is the seventeenth major release of macOS.
Although Google shut down Chrome running on Mavericks in 2018, the browser remains supported on Macs running Yosemite and El Capitan. Other browsers continue to work on some older Apple operating systems. Currently, the trio in support are Catalina (10.15), Mojave (10.14) and High Sierra (10.13) from 2019, 20, respectively. By tradition, Apple supports only the three latest versions with security updates. But if you want to be running the fastest browser on your Mac, run Chrome.
#Mozilla firefox for mac macos sierra 10.12.3 update#
The last security update for El Capitan, the youngest of the three, was in July 2018. No matter which browser you use, they're all pretty darn fast. In July 2021, those patches will stop and anyone stuck on one of those versions of OS X will be taking risks if they're browsing with Firefox.Īpple abandoned those flavors of OS X some time ago. Mozilla has used it before to wind down support for aged operating systems three years ago, it pushed users who relied on Windows XP or Windows Vista onto Firefox 52 ESR.įor the next year, Mozilla will deliver security updates to Firefox 78 ERS running on Mavericks, Yosemite and El Capitan. įirefox ESR and its limited feature changes were designed for enterprises that valued stability over sexy new functionality. While that and Firefox 78 will be identical, when the latter shifts to version 79 four weeks later, ERS will remain at 78, increased to 78.1 to mark its first security update.
On that date, users of Firefox still running OS X 10.9 (Mavericks), 10.10 (Yosemite) and 10.11 (El Capitan) on their Macs will instead be shunted to the extended channel and given 78.0 ESR. The move, a first step towards dropping all support, will take place June 30, when Mozilla releases Firefox 78. Mozilla this week announced it would automatically move users running outdated versions of macOS to the Firefox Extended Support Release (ESR), an edition that provides security updates only.
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