Here's another interesting data point: I found a few content process crashes with these NULL debug_ids but not parent process crashes (and I've looked at several dozen). When we're doing out-of-process minidump generation and the module is not in the dyld shared cache [we bail out early](https://searchfox.org/mozilla-central/rev/9028b0458cc1f432870d2996b186b0938dda734a/toolkit/crashreporter/breakpad-client/mac/handler/minidump_generator.cc#1534-1536) if we can't find the ID. Maybe we have to double-check the error handling in there to be sure we're not bailing out too early.
Bug 1745224 Comment 4 Edit History
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Here's another interesting data point: I found a few content process crashes with these NULL debug_ids but not parent process crashes (and I've looked at several dozen). When we're doing out-of-process minidump generation and the module is not in the dyld shared cache [we bail out early](https://searchfox.org/mozilla-central/rev/9028b0458cc1f432870d2996b186b0938dda734a/toolkit/crashreporter/breakpad-client/mac/handler/minidump_generator.cc#1534-1536) if we can't find the ID. Maybe we have to double-check the error handling in there to be sure we're not bailing out too early. [edit] Hadn't seen Steven comment, glad we came to the same conclusion.