diff --git a/browser/base/content/tab-content.js b/browser/base/content/tab-content.js
index faade1aed..839258793 100644
--- a/browser/base/content/tab-content.js
+++ b/browser/base/content/tab-content.js
@@ -396,6 +396,21 @@ var AboutReaderListener = {
         }
         break;
       case "DOMContentLoaded":
+	// Post-load fixups can go here.
+
+	// TenFourFox issue 654: defeat lozad.js lazy image loading.
+	Array.forEach(content.document.getElementsByTagName('img'),
+	function(i) {
+		try {
+			// Convert data-src to src.
+			if (i.getAttribute("data-src")) {
+				i.src = i.getAttribute("data-src");
+				i.setAttribute("data-loaded") = "true";
+			}
+		} catch(e) { }
+	});
+
+	// Do this last.
         this.updateReaderButton();
         break;
 
diff --git a/netwerk/protocol/http/nsHttpHandler.cpp b/netwerk/protocol/http/nsHttpHandler.cpp
index edc80ed42..13ffe6113 100644
--- a/netwerk/protocol/http/nsHttpHandler.cpp
+++ b/netwerk/protocol/http/nsHttpHandler.cpp
@@ -438,6 +438,8 @@ nsHttpHandler::AddStandardRequestHeaders(nsHttpHeaderArray *request,
             !hostLine.EqualsLiteral("imgur.com") &&
             !hostLine.EqualsLiteral("github.com") &&
             !hostLine.EqualsLiteral("gist.github.com") &&
+            !hostLine.EqualsLiteral("youtube.com") &&
+            !hostLine.EqualsLiteral("www.youtube.com") &&
     1)) {
         rv = request->SetHeader(nsHttp::User_Agent, UserAgent(),
                                 false, nsHttpHeaderArray::eVarietyDefault);