diff --git a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
index 195f867..f546dfa 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
+++ b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/C++.xshd
@@ -10,7 +10,7 @@ hello@exr.be
 https://github.com/ei
 -->
 
-<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.C;.cpp;.cxx;.hpp;.ino">
+<SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.cxx;.hpp;.ino">
 
     <Environment> 
         <Default color="Black" bgcolor="#FFFFFF"/>
diff --git a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/JavaScript.xshd b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/JavaScript.xshd
index 8f419e0..527e463 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/JavaScript.xshd
+++ b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/JavaScript.xshd
@@ -10,7 +10,7 @@ hello@exr.be
 https://github.com/ei
 -->
 
-<SyntaxDefinition name="JavaScript" extensions=".js">
+<SyntaxDefinition name="JavaScript" extensions=".js;.jsx;.mjs;.cjs">
 
     <Environment> 
         <Default color="Black" bgcolor="#FFFFFF"/>
diff --git a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/TypeScript.xshd b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/TypeScript.xshd
index c1a0ac3..eaf211b 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/TypeScript.xshd
+++ b/QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/TypeScript.xshd
@@ -10,7 +10,7 @@ hello@exr.be
 https://github.com/ei
 -->
 
-<SyntaxDefinition name="TypeScript" extensions=".ts">
+<SyntaxDefinition name="TypeScript" extensions=".ts;.tsx">
 
     <Environment> 
         <Default color="Black" bgcolor="#FFFFFF"/>