diff --git a/src/app/dashboard/dashboard.component.ts b/src/app/dashboard/dashboard.component.ts
index 3faf602..ac9401e 100644
--- a/src/app/dashboard/dashboard.component.ts
+++ b/src/app/dashboard/dashboard.component.ts
@@ -142,8 +142,14 @@ export class DashboardComponent implements OnInit, OnDestroy {
   iframeLoad() {
     if (this.webiframe && this.iframeUrl.value) {
       const href = this.webiframe.nativeElement.contentWindow.frames.location.href;
-      const niceURL = href.match(/.*?\/\/.*?(\/.*)/)[1];
-      this.actualIframeUrl = niceURL;
+      console.log(href, this.webiframe.nativeElement.contentWindow);
+      const match = href.match(/.*?\/\/.*?(\/.*)/);
+      if (match !== null) {
+        // iframes on Firefox can have an about:blank
+        // contentWindow after firing a (load) event
+        const niceURL = match[1];
+        this.actualIframeUrl = niceURL;
+      }
     }
   }