From b7117afaeb26c6eff23e3df931a5f86880c51b6d Mon Sep 17 00:00:00 2001
From: Nicolas Stepien <mayhemydg@gmail.com>
Date: Sun, 27 Nov 2011 19:23:19 +0100
Subject: [PATCH] Use the moz selector hack only on Firefox.

---
 4chan_x.user.js | 2 +-
 script.coffee   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/4chan_x.user.js b/4chan_x.user.js
index cce234d7f..2337972b5 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -2855,7 +2855,7 @@
       img = $.el('img', {
         src: a.href
       });
-      if (a.parentNode.className !== 'op') {
+      if (engine === "Gecko" && a.parentNode.className !== 'op') {
         filesize = $('.filesize', a.parentNode);
         _ref = filesize.textContent.match(/(\d+)x/), _ = _ref[0], max = _ref[1];
         img.style.maxWidth = "-moz-calc(" + max + "px)";
diff --git a/script.coffee b/script.coffee
index f76caa804..53129bc54 100644
--- a/script.coffee
+++ b/script.coffee
@@ -2188,7 +2188,7 @@ imgExpand =
     a = thumb.parentNode
     img = $.el 'img',
       src: a.href
-    unless a.parentNode.className is 'op'
+    if engine is "Gecko" and a.parentNode.className isnt 'op'
       filesize = $ '.filesize', a.parentNode
       [_, max] = filesize.textContent.match /(\d+)x/
       img.style.maxWidth = "-moz-calc(#{max}px)"