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On this machine, I have full Chrome support, and full support for Firefox 78 ESR which is the latest ESR version.

Meanwhile, I'm typing this post on a 2007 MacPro2,1 which is officially supported on 10.7 Lion, and unofficially supported on 10.11 El Capitan. That is the extent of the "serious stuff" I'm personally interested in on these old machines. That means my 2008 MacBook4,1 running 10.7 Lion is probably good until 2022 or so. I'm mostly concerned about what the banks think about the security of these browsers, and AFAIK typically they will support browser versions at least 2-3 years old. I'm only moderately concerned about security on these old machines. (You can also open it from the Applications folder, Launchpad, or Spotlight.) Click Continue and follow the onscreen instructions.Click to expand.That post was from a little while ago and now is no longer relevant, since Firefox Legacy was updated this week to 68 ESR, which is up to date as of August 25, 2020. After download is complete, Install macOS Sierra opens automatically.A file named Install macOS Sierra downloads to your Applications folder.

Click the Download button on the macOS Sierra page.Search the App Store for macOS Sierra, or go directly to the macOS Sierra page.To find your model, memory, storage, and version of OS X, choose About This Mac from the Apple menu ().īefore upgrading, it's a good idea to back up your Mac. It also requires at least 2GB of memory and 8.8GB of storage space.

MacOS Sierra requires one of the following Mac models and versions of OS X. Take a look at the information below to ensure that you meet all of the other necessary system requirements to upgrade to macOS Sierra, from our article: How to get macOS Sierra Your current version of macOS can be updated to macOS Sierra.

If I'm understanding correctly, several apps are not working because you need to update your macOS.