diff --git a/toolkit/themes/gnomestripe/mozapps/extensions/extensions.css b/toolkit/themes/gnomestripe/mozapps/extensions/extensions.css
index c5a392cb051..07759823e2c 100644
--- a/toolkit/themes/gnomestripe/mozapps/extensions/extensions.css
+++ b/toolkit/themes/gnomestripe/mozapps/extensions/extensions.css
@@ -51,12 +51,9 @@
   -moz-image-region: rect(21px, 84px, 42px, 63px);
 }
 
-#checkUpdatesAllButton, #showUpdateInfoButton, #hideUpdateInfoButton {
+#showUpdateInfoButton, #hideUpdateInfoButton {
   -moz-image-region: rect(0px, 63px, 21px, 42px);
 }
-#checkUpdatesAllButton[disabled="true"] {
-  -moz-image-region: rect(21px, 63px, 42px, 42px);
-}
 
 #restartAppButton {
   -moz-image-region: rect(0px, 42px, 21px, 21px);
diff --git a/toolkit/themes/winstripe/mozapps/extensions/extensions.css b/toolkit/themes/winstripe/mozapps/extensions/extensions.css
index 0e75879e4a3..9fcc69ee8a2 100644
--- a/toolkit/themes/winstripe/mozapps/extensions/extensions.css
+++ b/toolkit/themes/winstripe/mozapps/extensions/extensions.css
@@ -50,12 +50,9 @@
   -moz-image-region: rect(21px, 84px, 42px, 63px);
 }
 
-#checkUpdatesAllButton, #showUpdateInfoButton, #hideUpdateInfoButton {
+#showUpdateInfoButton, #hideUpdateInfoButton {
   -moz-image-region: rect(0px, 63px, 21px, 42px);
 }
-#checkUpdatesAllButton[disabled="true"] {
-  -moz-image-region: rect(21px, 63px, 42px, 42px);
-}
 
 #restartAppButton {
   -moz-image-region: rect(0px, 42px, 21px, 21px);