diff --git a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
index 640c273..bb84fde 100644
--- a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
+++ b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
@@ -478,16 +478,18 @@
     },
 
     _handleShiftLeftKey(e) {
-      if (this.shouldSuppressKeyboardShortcut(e)) { return; }
-      if (!this._showInlineDiffs) { return; }
+      if (this.shouldSuppressKeyboardShortcut(e) || this._noDiffsExpanded()) {
+        return;
+      }
 
       e.preventDefault();
       this.$.diffCursor.moveLeft();
     },
 
     _handleShiftRightKey(e) {
-      if (this.shouldSuppressKeyboardShortcut(e)) { return; }
-      if (!this._showInlineDiffs) { return; }
+      if (this.shouldSuppressKeyboardShortcut(e) || this._noDiffsExpanded()) {
+        return;
+      }
 
       e.preventDefault();
       this.$.diffCursor.moveRight();
@@ -591,10 +593,10 @@
 
     _handleNKey(e) {
       if (this.shouldSuppressKeyboardShortcut(e) ||
-          this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) {
+          (this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) ||
+          this._noDiffsExpanded()) {
         return;
       }
-      if (!this._showInlineDiffs) { return; }
 
       e.preventDefault();
       if (this.isModifierPressed(e, 'shiftKey')) {
@@ -606,10 +608,10 @@
 
     _handlePKey(e) {
       if (this.shouldSuppressKeyboardShortcut(e) ||
-          this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) {
+          (this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) ||
+          this._noDiffsExpanded()) {
         return;
       }
-      if (!this._showInlineDiffs) { return; }
 
       e.preventDefault();
       if (this.isModifierPressed(e, 'shiftKey')) {
@@ -1129,5 +1131,13 @@
       }
       return `sizeBars desktop ${hideClass}`;
     },
+
+    /**
+     * Returns true if none of the inline diffs have been expanded.
+     * @return {boolean}
+     */
+    _noDiffsExpanded() {
+      return this.filesExpanded === GrFileListConstants.FilesExpandedState.NONE;
+    },
   });
 })();
diff --git a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
index 36b5a41..0eecf30 100644
--- a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
+++ b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list_test.html
@@ -597,6 +597,26 @@
           assert.deepEqual(interact(), {opened_selected: true});
         });
       });
+
+      test('shift+left/shift+right', () => {
+        const moveLeftStub = sandbox.stub(element.$.diffCursor, 'moveLeft');
+        const moveRightStub = sandbox.stub(element.$.diffCursor, 'moveRight');
+
+        let noDiffsExpanded = true;
+        sandbox.stub(element, '_noDiffsExpanded', () => noDiffsExpanded);
+
+        MockInteractions.pressAndReleaseKeyOn(element, 73, 'shift', 'left');
+        assert.isFalse(moveLeftStub.called);
+        MockInteractions.pressAndReleaseKeyOn(element, 73, 'shift', 'right');
+        assert.isFalse(moveRightStub.called);
+
+        noDiffsExpanded = false;
+
+        MockInteractions.pressAndReleaseKeyOn(element, 73, 'shift', 'left');
+        assert.isTrue(moveLeftStub.called);
+        MockInteractions.pressAndReleaseKeyOn(element, 73, 'shift', 'right');
+        assert.isTrue(moveRightStub.called);
+      });
     });
 
     test('computed properties', () => {
@@ -1367,6 +1387,7 @@
       let nextCommentStub;
       let nextChunkStub;
       let fileRows;
+
       setup(() => {
         sandbox.stub(element, '_renderInOrder').returns(Promise.resolve());
         nKeySpy = sandbox.spy(element, '_handleNKey');
@@ -1377,9 +1398,11 @@
         fileRows =
             Polymer.dom(element.root).querySelectorAll('.row:not(.header)');
       });
-      test('n key with all files expanded and no shift key', () => {
+
+      test('n key with some files expanded and no shift key', () => {
         MockInteractions.pressAndReleaseKeyOn(fileRows[0], 73, null, 'i');
         flushAsynchronousOperations();
+        assert.equal(nextChunkStub.callCount, 1);
 
         // Handle N key should return before calling diff cursor functions.
         MockInteractions.pressAndReleaseKeyOn(element, 78, null, 'n');
@@ -1387,21 +1410,22 @@
         assert.isFalse(nextCommentStub.called);
 
         // This is also called in diffCursor.moveToFirstChunk.
-        assert.equal(nextChunkStub.callCount, 1);
-        assert.isFalse(!!element._showInlineDiffs);
+        assert.equal(nextChunkStub.callCount, 2);
+        assert.equal(element.filesExpanded, 'some');
       });
 
-      test('n key with all files expanded and shift key', () => {
+      test('n key with some files expanded and shift key', () => {
         MockInteractions.pressAndReleaseKeyOn(fileRows[0], 73, null, 'i');
         flushAsynchronousOperations();
+        assert.equal(nextChunkStub.callCount, 1);
 
         MockInteractions.pressAndReleaseKeyOn(element, 78, 'shift', 'n');
         assert.isTrue(nKeySpy.called);
-        assert.isFalse(nextCommentStub.called);
+        assert.isTrue(nextCommentStub.called);
 
         // This is also called in diffCursor.moveToFirstChunk.
         assert.equal(nextChunkStub.callCount, 1);
-        assert.isFalse(!!element._showInlineDiffs);
+        assert.equal(element.filesExpanded, 'some');
       });
 
       test('n key without all files expanded and shift key', () => {