diff --git a/chrome/content/zotero-platform/unix/overlay.css b/chrome/content/zotero-platform/unix/overlay.css
index fba2f7c8b6..cc19958220 100644
--- a/chrome/content/zotero-platform/unix/overlay.css
+++ b/chrome/content/zotero-platform/unix/overlay.css
@@ -61,9 +61,6 @@ tab {
 	border-top: 1px solid hsla(0, 0%, 0%, 0.2);
 	border-right: 1px solid hsla(0, 0%, 0%, 0.2);
 	border-left: 1px solid hsla(0, 0%, 0%, 0.2);
-	-moz-border-top-colors: none;
-	-moz-border-right-colors: none;
-	-moz-border-left-colors: none;
 }
 /* Fixes misc Ubuntu 16.10 rendering issue fixes. */
 #zotero-prefs menulist dropmarker{
diff --git a/chrome/content/zotero-platform/win/overlay.css b/chrome/content/zotero-platform/win/overlay.css
index 05b28fb467..4d46ca15df 100644
--- a/chrome/content/zotero-platform/win/overlay.css
+++ b/chrome/content/zotero-platform/win/overlay.css
@@ -105,10 +105,6 @@
 	border-color: #818790;
 	margin: 0;
 	padding: 0;
-	-moz-border-top-colors: none;
-	-moz-border-bottom-colors: none;
-	-moz-border-right-colors: none;
-	-moz-border-left-colors: none;
 }
 
 treechildren::-moz-tree-twisty {
diff --git a/chrome/skin/default/zotero/bindings/itembox.css b/chrome/skin/default/zotero/bindings/itembox.css
index 8b95d3277b..fc75bad93d 100644
--- a/chrome/skin/default/zotero/bindings/itembox.css
+++ b/chrome/skin/default/zotero/bindings/itembox.css
@@ -111,10 +111,6 @@ row > vbox > description
 	margin: 1px 5px 0 1px !important;
 	max-height: 1.5em !important;
 	border: 1px solid transparent;	
-	-moz-border-top-colors: none;
-	-moz-border-right-colors: none;
-	-moz-border-bottom-colors: none;
-	-moz-border-left-colors: none;
 	background-color: transparent;
 }
 
diff --git a/chrome/skin/default/zotero/overlay.css b/chrome/skin/default/zotero/overlay.css
index ff97637a0d..e7f75e8d71 100644
--- a/chrome/skin/default/zotero/overlay.css
+++ b/chrome/skin/default/zotero/overlay.css
@@ -644,7 +644,6 @@
 	font-weight: bold;
 	margin-bottom: 1em;
 	-moz-user-select: text;
-	user-select: text;
 	cursor: text
 }