--- a/dom/canvas/CanvasRenderingContext2D.cpp
+++ b/dom/canvas/CanvasRenderingContext2D.cpp
@@ -5243,17 +5243,17 @@ CanvasRenderingContext2D::DrawImage(cons
       const gl::ScopedBindTexture scopeBindTexture(gl, videoTexture);
 
       gl->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, LOCAL_GL_RGB, srcImage->GetSize().width, srcImage->GetSize().height, 0, LOCAL_GL_RGB, LOCAL_GL_UNSIGNED_SHORT_5_6_5, nullptr);
       gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
       gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
       gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR);
       gl->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR);
 
-      const gl::OriginPos destOrigin = gl::OriginPos::TopLeft;
+      const auto destOrigin = gl::OriginPos::BottomLeft;
       bool ok = false;
       do {
         const gl::ScopedFramebufferForTexture autoFBForTex(gl, videoTexture);
         if (!autoFBForTex.IsComplete()) {
           MOZ_ASSERT(false, "ScopedFramebufferForTexture not complete.");
           break;
         }
         const gl::ScopedBindFramebuffer bindFB(gl, autoFBForTex.FB());