diff --git a/pkg/clientconfiguration/conf.go b/pkg/clientconfiguration/conf.go
index 9614a0602..1f039590b 100644
--- a/pkg/clientconfiguration/conf.go
+++ b/pkg/clientconfiguration/conf.go
@@ -49,13 +49,10 @@ var StaticConfigurations = []ConfigurationItem{
 		},
 		Merge: true,
 	},
-	// Firefox 155 enabled AV1 for WebRTC by default, but 155/156 decode only the base spatial
-	// layer of an AV1 SVC stream. SVC is not visible in SDP, so such a subscriber negotiating AV1
-	// would be forwarded the SVC stream in place of the publisher's backup codec and render
-	// higher layers black. Firefox 157 decodes the higher layers, so it keeps AV1.
-	// Firefox does not publish AV1 either (no SVC encoding), so disable it in both directions.
+	// Firefox enabled AV1 for WebRTC by default since 155, but we got reports of issues with AV1 decoding.
+	// It does not publish AV1 either (no SVC encoding), so disable it in both directions.
 	{
-		Match: must.Get(NewScriptMatch(`(c.browser == "firefox" || c.browser == "firefox mobile") && c.browser_version < "157"`)),
+		Match: must.Get(NewScriptMatch(`c.browser == "firefox" || c.browser == "firefox mobile"`)),
 		Configuration: &livekit.ClientConfiguration{
 			DisabledCodecs: &livekit.DisabledCodecs{
 				Codecs: []*livekit.Codec{
diff --git a/pkg/clientconfiguration/conf_test.go b/pkg/clientconfiguration/conf_test.go
index 415abbbf3..e11738750 100644
--- a/pkg/clientconfiguration/conf_test.go
+++ b/pkg/clientconfiguration/conf_test.go
@@ -62,15 +62,11 @@ func TestStaticConfigurationAV1(t *testing.T) {
 		return false
 	}
 
-	// Firefox 155/156 decode only the base spatial layer of AV1 SVC
 	require.True(t, av1Disabled(&livekit.ClientInfo{Browser: "Firefox", BrowserVersion: "155.0", Os: "macOS"}))
 	require.True(t, av1Disabled(&livekit.ClientInfo{Browser: "firefox", BrowserVersion: "156.0.1", Os: "windows"}))
+	require.True(t, av1Disabled(&livekit.ClientInfo{Browser: "firefox", BrowserVersion: "158.0.2", Os: "windows"}))
 	// an unknown version is treated as affected
 	require.True(t, av1Disabled(&livekit.ClientInfo{Browser: "firefox", Os: "linux"}))
-	// Firefox 157 decodes every layer, so it keeps AV1
-	require.False(t, av1Disabled(&livekit.ClientInfo{Browser: "firefox", BrowserVersion: "157.0", Os: "windows"}))
-	require.False(t, av1Disabled(&livekit.ClientInfo{Browser: "firefox", BrowserVersion: "158.0.2", Os: "windows"}))
-	require.False(t, av1Disabled(&livekit.ClientInfo{Browser: "chrome", Os: "linux"}))
 
 	// Firefox for Android keeps the AV1 rule alongside its H.264 publish rule
 	android := &livekit.ClientInfo{Browser: "firefox mobile", BrowserVersion: "156.0", Os: "android"}