macOS SDK upgraded to 11.0

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Greg Tatum

Jun 6, 2022, 5:53:27 PMJun 6
to, Firefox Dev
If you are specifying a 10.12 or lower version of the macOS SDK in your mozconfig you will most likely get build errors. e.g.
'Vision/Vision.h' file not found
#import <Vision/Vision.h>
1 error generated.

The fix is to either remove SDK line from your mozconfig (which will use the SDK from your xcode) or upgrade to at least version 10.13.

SDK upgrade:

macOS Text recognition APIs (requires 10.13 to build)

~Greg Tatum

Stephen A Pohl

Jun 10, 2022, 7:13:17 PMJun 10
to, Firefox Dev
A change has been queued on autoland to require the macOS 11 (or higher)
SDK to build Firefox on macOS. The documentation to build Firefox will
be updated simultaneously:

This brings the requirements for local builds in line with what is
already happening on CI (see

This change allowed us to remove many workarounds that were in place to
enable building with older SDKs:
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