diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
index 75b2dbe79ee..f5cc645ae82 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContext.idl
@@ -1,4 +1,5 @@
 #import <WebGL/WebGLRenderingContextBase.idl>
+#import <WebGL/WebGLRenderingContextOverloads.idl>
 
 // https://registry.khronos.org/webgl/specs/latest/1.0/#5.14
 [Exposed=(Window,Worker)]
@@ -6,3 +7,4 @@ interface WebGLRenderingContext {
 };
 
 WebGLRenderingContext includes WebGLRenderingContextBase;
+WebGLRenderingContext includes WebGLRenderingContextOverloads;
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
index 12b031856e9..df40103c673 100644
--- a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.idl
@@ -22,7 +22,14 @@ interface mixin WebGLRenderingContextBase {
 
     // FIXME: The type should be (HTMLCanvasElement or OffscreenCanvas).
     [ImplementedAs=canvas_for_binding] readonly attribute HTMLCanvasElement canvas;
+    [FIXME] readonly attribute GLsizei drawingBufferWidth;
+    [FIXME] readonly attribute GLsizei drawingBufferHeight;
+    [FIXME] readonly attribute GLenum drawingBufferFormat;
 
+    [FIXME] attribute PredefinedColorSpace drawingBufferColorSpace;
+    [FIXME] attribute PredefinedColorSpace unpackColorSpace;
+
+    [FIXME] WebGLContextAttributes? getContextAttributes();
     boolean isContextLost();
 
     sequence<DOMString>? getSupportedExtensions();
diff --git a/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextOverloads.idl b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextOverloads.idl
new file mode 100644
index 00000000000..f9a5b9c27e7
--- /dev/null
+++ b/Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextOverloads.idl
@@ -0,0 +1,31 @@
+// https://registry.khronos.org/webgl/specs/latest/1.0/#5.14
+interface mixin WebGLRenderingContextOverloads {
+    [FIXME] undefined bufferData(GLenum target, GLsizeiptr size, GLenum usage);
+    [FIXME] undefined bufferData(GLenum target, AllowSharedBufferSource? data, GLenum usage);
+    [FIXME] undefined bufferSubData(GLenum target, GLintptr offset, AllowSharedBufferSource data);
+
+    [FIXME] undefined compressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, [AllowShared] ArrayBufferView data);
+    [FIXME] undefined compressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, [AllowShared] ArrayBufferView data);
+
+    [FIXME] undefined readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, [AllowShared] ArrayBufferView? pixels);
+
+    [FIXME] undefined texImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, [AllowShared] ArrayBufferView? pixels);
+    [FIXME] undefined texImage2D(GLenum target, GLint level, GLint internalformat, GLenum format, GLenum type, TexImageSource source); // May throw DOMException
+
+    [FIXME] undefined texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, [AllowShared] ArrayBufferView? pixels);
+    [FIXME] undefined texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLenum format, GLenum type, TexImageSource source); // May throw DOMException
+
+    [FIXME] undefined uniform1fv(WebGLUniformLocation? location, Float32List v);
+    [FIXME] undefined uniform2fv(WebGLUniformLocation? location, Float32List v);
+    [FIXME] undefined uniform3fv(WebGLUniformLocation? location, Float32List v);
+    [FIXME] undefined uniform4fv(WebGLUniformLocation? location, Float32List v);
+
+    [FIXME] undefined uniform1iv(WebGLUniformLocation? location, Int32List v);
+    [FIXME] undefined uniform2iv(WebGLUniformLocation? location, Int32List v);
+    [FIXME] undefined uniform3iv(WebGLUniformLocation? location, Int32List v);
+    [FIXME] undefined uniform4iv(WebGLUniformLocation? location, Int32List v);
+
+    [FIXME] undefined uniformMatrix2fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
+    [FIXME] undefined uniformMatrix3fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
+    [FIXME] undefined uniformMatrix4fv(WebGLUniformLocation? location, GLboolean transpose, Float32List value);
+};