diff -dupbr firefox-64.0/browser/base/content/browser-sets.inc firefox-64.0-edit/browser/base/content/browser-sets.inc
--- firefox-64.0/browser/base/content/browser-sets.inc 2018-12-06 21:56:20.000000000 -0500
+++ firefox-64.0-edit/browser/base/content/browser-sets.inc 2018-12-26 10:41:18.293000000 -0500
@@ -116,7 +116,7 @@
+ modifiers="accel,shift" reserved="true"/>
-
+
#ifdef XP_GNOME
#define NUM_SELECT_TAB_MODIFIER alt
diff -dupbr firefox-64.0/browser/locales/en-US/chrome/browser/browser.dtd firefox-64.0-edit/browser/locales/en-US/chrome/browser/browser.dtd
--- firefox-64.0/browser/locales/en-US/chrome/browser/browser.dtd 2018-12-06 21:56:20.000000000 -0500
+++ firefox-64.0-edit/browser/locales/en-US/chrome/browser/browser.dtd 2018-12-26 10:38:05.298000000 -0500
@@ -104,8 +104,8 @@ These items have the same accesskey but
-
-
+
+