diff --git a/pkgs/applications/networking/browsers/firefox/default.nix b/pkgs/applications/networking/browsers/firefox/default.nix
index e4f8fb108cf0..d06e065d9c52 100644
--- a/pkgs/applications/networking/browsers/firefox/default.nix
+++ b/pkgs/applications/networking/browsers/firefox/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
     "--disable-debug"
     "--enable-xft"
     "--disable-freetype2"
-    "--enable-swg"
+    "--enable-svg"
     "--enable-strip"
     "--enable-default-toolkit=gtk2"
     "--with-system-jpeg"
diff --git a/pkgs/applications/networking/browsers/opera/default.nix b/pkgs/applications/networking/browsers/opera/default.nix
index f51b1f5cb28e..f108a9262202 100644
--- a/pkgs/applications/networking/browsers/opera/default.nix
+++ b/pkgs/applications/networking/browsers/opera/default.nix
@@ -3,6 +3,8 @@
 assert stdenv.system == "i686-linux";
 assert motif != null -> libXt != null && libXext != null;
 
+# !!! Add Xinerama and Xrandr dependencies?  Or should those be in Qt?
+
 stdenv.mkDerivation {
   name = "opera-8.51-20051114.6";
 
diff --git a/pkgs/development/interpreters/xulrunner/default.nix b/pkgs/development/interpreters/xulrunner/default.nix
index 5f811133bde9..372cc03608af 100644
--- a/pkgs/development/interpreters/xulrunner/default.nix
+++ b/pkgs/development/interpreters/xulrunner/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
     "--disable-debug"
     "--enable-xft"
     "--disable-freetype2"
-    "--enable-swg"
+    "--enable-svg"
     "--enable-strip"
     "--enable-default-toolkit=gtk2"
     "--with-system-jpeg"