diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index f445f232ebe..e19d213ce95 100644
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -2673,7 +2673,11 @@ function FillInHTMLTooltip(tipElement)
   var titleText = null;
   var XLinkTitleText = null;
   var SVGTitleText = null;
+#ifdef MOZ_SVG
   var lookingForSVGTitle = true;
+#else
+  var lookingForSVGTitle = false;
+#endif // MOZ_SVG
   var direction = tipElement.ownerDocument.dir;
 
   while (!titleText && !XLinkTitleText && !SVGTitleText && tipElement) {