Since the integration of bug 1299329
[1]
in Nightly, these error messages are printed to the terminal and
system.log so you'll see them when running Firefox from the command line on
Mac.
They are not known to cause any browser issues so you can ignore them.
These are due to sandbox restrictions imposed on content processes.
I filed bug 1306663[2] to track the work to remove the messages. More
context on 1299329 for those interested.
plugin-container[96229:2989903] *** CFMessagePort: bootstrap_register():
failed 1100 (0x44c) 'Permission denied', port = 0x4b2f, name =
'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
plugin-container[96229:2989903] void __CFPasteboardSetup() : Failed to
allocate communication port for com.apple.CFPasteboardClient; this is
likely due to sandbox restrictions
1. *Bug 1299329*
<
https://bugzilla.mozilla.org/show_bug.cgi?id=1299329> - Remove
printing-related privileges from content process sandbox
2. *Bug 1306663*
<
https://bugzilla.mozilla.org/show_bug.cgi?id=1306663> - Investigate
Preventing OS X CFMessagePort/CFPasteboardSetup Error Messages
Thanks,
Haik