From bd51bbfd1609e1f08034b16b813161d8468e0832 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sat, 11 Sep 2021 10:26:41 +0200
Subject: [PATCH] Remove `mozImageSmoothingEnabled` fallback in
 `CanvasGraphics.endGroup`

This was added all the way back in PR 2936, however it's been unnecessary ever since Firefox 51 (released on 2017-01-24); please see the MDN compatibility data:
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled#browser_compatibility
---
 src/display/canvas.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/display/canvas.js b/src/display/canvas.js
index a165647c3..48fb2e449 100644
--- a/src/display/canvas.js
+++ b/src/display/canvas.js
@@ -2458,11 +2458,8 @@ class CanvasGraphics {
     this.ctx = this.groupStack.pop();
     // Turn off image smoothing to avoid sub pixel interpolation which can
     // look kind of blurry for some pdfs.
-    if (this.ctx.imageSmoothingEnabled !== undefined) {
-      this.ctx.imageSmoothingEnabled = false;
-    } else {
-      this.ctx.mozImageSmoothingEnabled = false;
-    }
+    this.ctx.imageSmoothingEnabled = false;
+
     if (group.smask) {
       this.tempSMask = this.smaskStack.pop();
     } else {