diff --git a/common/changes/office-ui-fabric-react/patch-1_2018-03-17-10-31.json b/common/changes/office-ui-fabric-react/patch-1_2018-03-17-10-31.json
new file mode 100644
index 00000000000000..c597dd62bd5d4c
--- /dev/null
+++ b/common/changes/office-ui-fabric-react/patch-1_2018-03-17-10-31.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "office-ui-fabric-react",
+      "comment": "TextField: Fixing issue with promise based error message not being announced by firefox + NVDA",
+      "type": "patch"
+    }
+  ],
+  "packageName": "office-ui-fabric-react",
+  "email": "prbhad@microsoft.com"
+}
\ No newline at end of file
diff --git a/packages/office-ui-fabric-react/src/components/TextField/TextField.tsx b/packages/office-ui-fabric-react/src/components/TextField/TextField.tsx
index 8962b4c61e6802..ac5c12b0f19c6e 100644
--- a/packages/office-ui-fabric-react/src/components/TextField/TextField.tsx
+++ b/packages/office-ui-fabric-react/src/components/TextField/TextField.tsx
@@ -193,12 +193,12 @@ export class TextField extends BaseComponent<ITextFieldProps, ITextFieldState> i
           <span id={ this._descriptionId }>
             { description && <span className={ css('ms-TextField-description', styles.description) }>{ description }</span> }
             { errorMessage &&
-              <div>
+              <div aria-live='assertive'>
                 <DelayedRender>
                   <p
                     className={ css('ms-TextField-errorMessage', AnimationClassNames.slideDownIn20, styles.errorMessage) }
                   >
-                    <span aria-live='assertive' className={ styles.errorText } data-automation-id='error-message'>{ errorMessage }</span>
+                    <span className={ styles.errorText } data-automation-id='error-message'>{ errorMessage }</span>
                   </p>
                 </DelayedRender>
               </div>