update an OS X EI Capitan version 10.11.6

Hi , I have this OS X EII Capitan version 10.11.6 desktop mac, it waws standing for a long time and now i want to use it, but there are some issues. I can't see my google drive and things like that... a lots of websites doesn't open. what should i do?

iPhone 12 Pro, iOS 18

Posted on Jan 19, 2025 9:52 AM

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Posted on Jan 19, 2025 10:44 AM

El Capitan is so old that it has a problem with expired root certificates, and a Safari web browser that has not received updates in many years.


Additionally, there are root certificates that expired last week, which will impact the usability of Firefox 78 ESR - which is the latest version of Firefox that can be used on El Capitan. Similar issues may occur with other Chromium-based browsers shortly, unless they are specifically made to work with older macOS. Your options are limited...


So my recommendations:

  • get any outstanding updates for your El Capitan install by running software update from the command line:
sudo softwareupdate -ia
  • There is an auto-downloader for Chromium Legacy Browser. I'm not the biggest fan because it was deseign for OS X 10.7-10.9 and can be a bit flaky of El Capitan...but it will do a bunch of background fixes in addition to downloading Chromium Legacy. Most importantly, it will update your ISRG X1 Root Certificate. You can direct download it here:

https://jonathanalland.com/downloads/chromium-legacy-downloader.dmg


Even with all that, El Capitan is rapidly approaching the terminal end-of-life stage of its predecessors, where it is basically just a hobby toy now and you can't do anything substantial with it anymore.

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Question marked as Top-ranking reply

Jan 19, 2025 10:44 AM in response to gilad226

El Capitan is so old that it has a problem with expired root certificates, and a Safari web browser that has not received updates in many years.


Additionally, there are root certificates that expired last week, which will impact the usability of Firefox 78 ESR - which is the latest version of Firefox that can be used on El Capitan. Similar issues may occur with other Chromium-based browsers shortly, unless they are specifically made to work with older macOS. Your options are limited...


So my recommendations:

  • get any outstanding updates for your El Capitan install by running software update from the command line:
sudo softwareupdate -ia
  • There is an auto-downloader for Chromium Legacy Browser. I'm not the biggest fan because it was deseign for OS X 10.7-10.9 and can be a bit flaky of El Capitan...but it will do a bunch of background fixes in addition to downloading Chromium Legacy. Most importantly, it will update your ISRG X1 Root Certificate. You can direct download it here:

https://jonathanalland.com/downloads/chromium-legacy-downloader.dmg


Even with all that, El Capitan is rapidly approaching the terminal end-of-life stage of its predecessors, where it is basically just a hobby toy now and you can't do anything substantial with it anymore.

Jan 20, 2025 7:47 AM in response to gilad226

Sounds right. The last release of El Capitan is 10.11.6.


We don't know the age of this iMac.  Please tell us which Mac, model and year this is, and what macOS version you’re running. Find that info by clicking the Apple menu () at the top-left of your screen and then select About This Mac. (Note- for privacy and security reasons, please never post your serial number.)


If this iMac is a mid-2009 or earlier, then El Capitan is as far as the OS can be upgraded.

If the iMac is newer than 2009, then you may have options before you call it quits.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

update an OS X EI Capitan version 10.11.6

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