diff --git a/dom/media/test/browser/browser.toml b/dom/media/test/browser/browser.toml
index 151ef6d3a5ce..25413e96ecf2 100644
--- a/dom/media/test/browser/browser.toml
+++ b/dom/media/test/browser/browser.toml
@@ -26,7 +26,7 @@ tags = "bleedover"
 
 ["browser_glean_first_frame_loaded_time.js"]
 tags = "os_integration"
-skip-if = ["os == 'mac' && os_version == '14.40'"]  # Bug 1909908
+skip-if = ["os == 'mac' && os_version == '14.70' && processor == 'x86_64'"]  # Bug 1909908
 
 ["browser_tab_visibility_and_play_time.js"]
 
diff --git a/dom/media/test/mochitest.toml b/dom/media/test/mochitest.toml
index 44887c0e143b..e331625000ed 100644
--- a/dom/media/test/mochitest.toml
+++ b/dom/media/test/mochitest.toml
@@ -764,7 +764,7 @@ tags = "cloneelementvisually"
 ["test_cloneElementVisually_resource_change.html"]
 skip-if = [
   "os == 'linux' && !(debug || asan || tsan)",  # Bug 1559308 - lower frequency intermittent
-  "os == 'mac' && os_version == '14.40'",  # Bug 1909908
+  "os == 'mac' && os_version == '14.70' && processor == 'x86_64'",  # Bug 1909908
 ]
 tags = "cloneelementvisually os_integration"
 
diff --git a/dom/media/test/mochitest_media_recorder.toml b/dom/media/test/mochitest_media_recorder.toml
index f1d4938e1ea6..6e6069ec7874 100644
--- a/dom/media/test/mochitest_media_recorder.toml
+++ b/dom/media/test/mochitest_media_recorder.toml
@@ -729,7 +729,7 @@ skip-if = ["os == 'android'"] # android(bug 1232305)
 skip-if = [
   "os == 'win' && os_version == '10.2009'", # Bug 1453375
   "os == 'android'", # Bug 1694645
-  "os == 'mac' && os_version == '14.40'",  # Bug 1909908
+  "os == 'mac' && os_version == '14.70' && processor == 'x86_64'",  # Bug 1909908
 ]
 
 ["test_mediarecorder_record_4ch_audiocontext.html"]
diff --git a/netwerk/test/unit/xpcshell.toml b/netwerk/test/unit/xpcshell.toml
index 2ae3fa9f9b13..19519a78c789 100644
--- a/netwerk/test/unit/xpcshell.toml
+++ b/netwerk/test/unit/xpcshell.toml
@@ -983,17 +983,17 @@ skip-if = [
 
 ["test_proxy-slow-upload.js"]
 
-["test_proxy_cancel.js"]
-run-sequentially = "node server exceptions dont replay well"
-
-["test_proxy_pac.js"]
-
 ["test_proxyDNS_leak.js"]
 skip-if = [
   "os == 'android'",
   "socketprocess_networking",
 ]
 
+["test_proxy_cancel.js"]
+run-sequentially = "node server exceptions dont replay well"
+
+["test_proxy_pac.js"]
+
 ["test_proxyconnect.js"]
 skip-if = [
   "tsan",
diff --git a/taskcluster/gecko_taskgraph/util/chunking.py b/taskcluster/gecko_taskgraph/util/chunking.py
index f623d43366f7..4600a77e8788 100644
--- a/taskcluster/gecko_taskgraph/util/chunking.py
+++ b/taskcluster/gecko_taskgraph/util/chunking.py
@@ -123,6 +123,7 @@ def guess_mozinfo_from_task(task, repo="", app_version="", test_tags=[]):
         ("macosx", "1015"): "10.15",
         ("macosx", "1100"): "11.20",
         ("macosx", "1400"): "14.40",
+        ("macosx", "1470"): "14.70",
         ("windows", "10"): "10.2009",
         ("windows", "11"): "11.2009",
     }
diff --git a/testing/mochitest/runtests.py b/testing/mochitest/runtests.py
index c7c6a59a2594..0eed5bccbcb4 100644
--- a/testing/mochitest/runtests.py
+++ b/testing/mochitest/runtests.py
@@ -1782,7 +1782,7 @@ toolbar#nav-bar {
                 noDefaultFilters = True
 
             # TODO: remove this when crashreporter is fixed on mac via bug 1910777
-            if info["os"] == "mac" and info["os_version"] == "14.40":
+            if info["os"] == "mac" and info["os_version"].split(".")[0] == "14":
                 info["crashreporter"] = False
 
             tests = manifest.active_tests(
diff --git a/testing/xpcshell/runxpcshelltests.py b/testing/xpcshell/runxpcshelltests.py
index 5224d3cf5a7f..77b26a39aa12 100755
--- a/testing/xpcshell/runxpcshelltests.py
+++ b/testing/xpcshell/runxpcshelltests.py
@@ -1587,7 +1587,7 @@ class XPCShellTests(object):
             (release, versioninfo, machine) = platform.mac_ver()
             versionNums = release.split(".")[:2]
             os_version = "%s.%s" % (versionNums[0], versionNums[1].ljust(2, "0"))
-            if os_version == "14.40" and self.mozInfo["arch"] == "aarch64":
+            if os_version.split(".")[0] == "14":
                 self.mozInfo["crashreporter"] = False
 
         # we default to false for e10s on xpcshell
diff --git a/toolkit/crashreporter/test/unit/xpcshell.toml b/toolkit/crashreporter/test/unit/xpcshell.toml
index f46200ac07fb..c471d74c6967 100644
--- a/toolkit/crashreporter/test/unit/xpcshell.toml
+++ b/toolkit/crashreporter/test/unit/xpcshell.toml
@@ -112,6 +112,7 @@ reason = "Windows test specific to the x86-64 architecture"
 skip-if = [
   "os == 'android'",
   "os == 'mac' && os_version == '10.15' && processor == 'x86_64'",
+  "os == 'mac' && os_version == '14.70' && processor == 'x86_64'",
   "os == 'mac' && os_version == '11.20' && arch == 'aarch64'",
   "os == 'linux' && os_version == '18.04' && bits == 32",
 ]