Fwd: Upcoming changes to Mac package layout, signing

Benjamin Kerensa bkerensa at gmail.com
Tue Sep 2 10:02:01 UTC 2014


Are you responsible for those changes? Who handles Relman for TB?

On Sep 2, 2014 12:29 AM, "Mark Banner" <mbanner at mozilla.com> wrote:
> Thought this might be useful to forward here.
> -------- Forwarded Message --------
> Subject:
> Upcoming changes to Mac package layout, signing
> Date:
> Tue, 12 Aug 2014 13:05:18 -0400
> From:
> Ben Hearsum <bhearsum at mozilla.com>
> To:
> firefox-dev at mozilla.org
> Hi all,
> Apple recently announced changes to how OS X applications must be
packaged and signed (
in order for them to function correctly on OS X 10.9.5 and 10.10. The tl;dr
version of this is "only mach-O binaries may live in .app/Contents/MacOS,
and signing must be done on 10.9 or later". Without any changes, future
versions of Firefox will cease to function out-of-the-box on OS X 10.9.5
and 10.10. We do not have a release date for either of these OS X versions
> * Move all non-mach-O files out of .app/Contents/MacOS. Most of these
will move to .app/Contents/Resources, but files that could legitimately
change at runtime (eg: everything in defaults/) will move to
.app/MozResources (which can be modified without breaking the signature):
This work is in progress, but no patches are ready yet.
> * Add new features to the client side update code to allow partner
repacks to continue to work. (
> * Create and use 10.9 signing servers for these new-style apps. We still
need to use our existing 10.6 signing servers for any builds without these
changes. (https://bugzilla.mozilla.org/show_bug.cgi?id=1046749 and
> * Update signing server code to support new v2 signatures.
> Timeline:
> We are intending to ship the required changes with Gecko 34, which ships
on November 25th, 2014. The changes required are very invasive, and we
don't feel that they can be safely backported to any earlier version
quickly enough without major risk of regressions. We are still looking at
whether or not we'll backport to ESR 31. To this end, we've asked that
Apple whitelist Firefox and Thunderbird versions that will not have the
necessary changes in them. We're still working with them to confirm whether
or not this can happen.
> This has been cross posted a few places - please send all follow-ups to
the mozilla.dev.platform newsgroup.
> - Ben
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> tb-planning at mozilla.org
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