Suppress failing HTML tests on firefox and IE 11.

tests/html/html.status

Index: tests/html/html.status
diff --git a/tests/html/html.status b/tests/html/html.status
index 4e77a0a3a57ff814d64bd5c75644cf1875849bd2..e586033477e3821512e33db5eddf169ddc6cd45c 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -212,6 +212,7 @@ css_test/supportsPointConversions: Fail # Issues 21710
 css_test/functional: Fail # Issues 21710
 
 [ $runtime == ie11 ]
+node_validator_important_if_you_suppress_make_the_bug_critical_test/dom_clobbering: RuntimeError # Issue 24387
 custom/document_register_type_extensions_test/single-parameter: Fail # Issue 13193.
 canvasrenderingcontext2d_test/arc: Pass, Fail # Pixel unexpected value. Please triage this failure.
 worker_test/functional: Pass, Fail # Issues 20659.
@@ -353,7 +354,9 @@ performance_api_test/supported: Fail
 speechrecognition_test/supported: Fail
 websql_test/supported: Fail
 
-[ $runtime == ff ]
+[  $compiler == dart2js && $runtime == ff ]
+node_validator_important_if_you_suppress_make_the_bug_critical_test/DOM_sanitization: RuntimeError # Issue 24384
+history_test/history: Skip # Issue 22050
 xhr_test/xhr: Pass, Fail # Issue 11602
 dart_object_local_storage_test: Skip  # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
 webgl_1_test: Pass, Fail   # Issue 8219
@@ -382,6 +385,10 @@ speechrecognition_test/supported: Fail
 touchevent_test/supported: Fail
 websql_test/supported: Fail
 
+[  $compiler == dart2js && $runtime == ff & $system == windows ]
+svgelement_test/innerHtml: RuntimeError # Issue 24386
+svgelement_test/outerHtml: RuntimeError # Issue 24386
+
 # 'html' tests import the HTML library, so they only make sense in
 # a browser environment.
 [ $runtime == vm ]
@@ -390,9 +397,6 @@ websql_test/supported: Fail
 [ $compiler == dart2js && ($runtime == drt || $runtime == ff) ]
 request_animation_frame_test: Skip # Async test hangs.
 
-[ $compiler == dart2js && $runtime == ff ]
-history_test/history: Skip # Issue 22050
-
 [ $compiler == dart2js && $csp && ($runtime == drt || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == chromeOnAndroid) ]
 # Note: these tests are all injecting scripts by design.  This is not allowed under CSP.
 event_customevent_test: Fail       # Test cannot run under CSP restrictions.