2 files changed, 2 insertions, 2 deletions
diff --git a/parser/html/nsHtml5Portability.cpp b/parser/html/nsHtml5Portability.cpp
index 36c7e758a..0a7c6f845 100644
--- a/parser/html/nsHtml5Portability.cpp
+++ b/parser/html/nsHtml5Portability.cpp
@@ -91,7 +91,7 @@ nsHtml5Portability::releaseString(nsString* str)
 bool
 nsHtml5Portability::localEqualsBuffer(nsIAtom* local, char16_t* buf, int32_t offset, int32_t length)
 {
-  return local->Equals(nsDependentSubstring(buf + offset, buf + offset + length));
+  return local->Equals(buf + offset, length);
 }
 
 bool
diff --git a/parser/html/nsHtml5TreeOperation.h b/parser/html/nsHtml5TreeOperation.h
index 0b2970738..a93f44c46 100644
--- a/parser/html/nsHtml5TreeOperation.h
+++ b/parser/html/nsHtml5TreeOperation.h
@@ -108,7 +108,7 @@ class nsHtml5TreeOperation {
       }
       nsAutoString str;
       aAtom->ToString(str);
-      return NS_Atomize(str);
+      return NS_AtomizeMainThread(str);
     }
 
     static nsresult AppendTextToTextNode(const char16_t* aBuffer,