diff --git a/mozilla/themes/classic/global/win/filepicker.css b/mozilla/themes/classic/global/win/filepicker.css
index f6a2103fe7f..7dd1160e9da 100644
--- a/mozilla/themes/classic/global/win/filepicker.css
+++ b/mozilla/themes/classic/global/win/filepicker.css
@@ -48,3 +48,13 @@ outlinerbody:-moz-outliner-image(FilenameColumn, file) {
   list-style-image: url("chrome://global/skin/filepicker/blank.gif");
 }
 
+/* ::::: focus rules ::::: */
+
+#directoryOutliner > outlinerrows > .outliner-bodybox {
+  border: 1px solid transparent;
+} 
+
+#directoryOutliner:focus > outlinerrows > .outliner-bodybox {
+  border-color: #000000;
+} 
+
diff --git a/mozilla/themes/modern/global/filepicker.css b/mozilla/themes/modern/global/filepicker.css
index f6a2103fe7f..b60cdc01b50 100644
--- a/mozilla/themes/modern/global/filepicker.css
+++ b/mozilla/themes/modern/global/filepicker.css
@@ -48,3 +48,14 @@ outlinerbody:-moz-outliner-image(FilenameColumn, file) {
   list-style-image: url("chrome://global/skin/filepicker/blank.gif");
 }
 
+
+/* ::::: focus rules ::::: */
+
+#directoryOutliner > outlinerrows > .outliner-bodybox {
+  border: 1px solid transparent;
+} 
+
+#directoryOutliner:focus > outlinerrows > .outliner-bodybox {
+  border-color: #000000;
+}
+