diff --git a/socorro/signature/siglists/irrelevant_signature_re.txt b/socorro/signature/siglists/irrelevant_signature_re.txt
index a8f7c4c6ec..28323fc8c5 100644
--- a/socorro/signature/siglists/irrelevant_signature_re.txt
+++ b/socorro/signature/siglists/irrelevant_signature_re.txt
@@ -135,6 +135,8 @@ mozcrt19\.dll
 mozilla::AlignedBuffer<T>::Data
 mozilla::ArrayIterator<T>
 mozilla::Atomic<T>
+mozilla::CheckCheckedUnsafePtrs<T>::Check
+mozilla::CheckingPolicyAccess::NotifyCheckFailure
 mozilla::detail::Atomic
 mozilla::detail::BaseAutoLock
 mozilla::detail::BaseMonitorAutoLock
@@ -144,6 +146,7 @@ mozilla::detail::IntrinsicMemoryOps
 mozilla::detail::MemoryOperations
 mozilla::detail::MutexImpl
 mozilla::detail::RunnableMethodImpl<T>::RunnableMethodImpl
+mozilla::detail::SupportCheckedUnsafePtrImpl<T>
 mozilla::detail::ThreadLocalNativeStorage<T>::get
 mozilla::detail::ThreadLocal<T>::get
 mozilla::detail::VariantImplementation<T>::
diff --git a/socorro/signature/siglists/prefix_signature_re.txt b/socorro/signature/siglists/prefix_signature_re.txt
index 41fe252db8..fd564cd22b 100644
--- a/socorro/signature/siglists/prefix_signature_re.txt
+++ b/socorro/signature/siglists/prefix_signature_re.txt
@@ -102,8 +102,8 @@ memset
 MessageLoop::PostTask_Helper
 MessageLoop::PostTask
 moz_malloc_size_of
-mozilla::CheckCheckedUnsafePtrs<T>::Check
 mozilla::CheckedInt
+mozilla::CrashOnDanglingCheckedUnsafePtr::NotifyCheckFailure
 mozilla::detail::InvalidArrayIndex_CRASH
 mozilla::detail::nsTStringRepr<T>::
 mozilla::Variant<T>::