diff --git a/src/raven.js b/src/raven.js
index b5d569470094..28d520b55c60 100644
--- a/src/raven.js
+++ b/src/raven.js
@@ -1873,7 +1873,11 @@ Raven.prototype = {
       // intentionally make shallow copy so that additions
       // to breadcrumbs aren't accidentally sent in this request
       data.breadcrumbs = {
-        values: [].slice.call(this._breadcrumbs, 0)
+        values: [].slice.call(this._breadcrumbs, 0).sort(function(prev, next) {
+          if (prev.timestamp > next.timestamp) return 1;
+          if (prev.timestamp < next.timestamp) return -1;
+          return 0;
+        })
       };
     }
 
diff --git a/test/raven.test.js b/test/raven.test.js
index a0ac4caa1d1e..bafe193ebdcb 100644
--- a/test/raven.test.js
+++ b/test/raven.test.js
@@ -1696,6 +1696,7 @@ describe('globals', function() {
       assert.equal(Raven._backoffStart, null); // clock is at 100ms
       assert.equal(Raven._backoffDuration, 0);
     });
+
     it('should truncate url in breadcrumb', function() {
       this.sinon.stub(Raven, 'isSetup').returns(true);
       this.sinon.stub(Raven, '_makeRequest');
@@ -1816,6 +1817,56 @@ describe('globals', function() {
         Raven._send({message: 'bar'});
       }, TypeError);
     });
+
+    it('should sort all breadcrumbs based on their timestamps', function() {
+      this.sinon.stub(Raven, 'isSetup').returns(true);
+      this.sinon.stub(Raven, '_makeRequest');
+      this.sinon.stub(Raven, '_getHttpData').returns({
+        url: 'http://localhost/?a=b',
+        headers: {'User-Agent': 'lolbrowser'}
+      });
+      this.sinon.spy(Raven, '_sendProcessedPayload');
+
+      Raven._breadcrumbs = [
+        {
+          type: 'ui.something',
+          message: 'something click 100',
+          timestamp: 100
+        },
+        {
+          type: 'ui.something',
+          message: 'something click 300',
+          timestamp: 300
+        },
+        {
+          type: 'ui.something',
+          message: 'something click 200',
+          timestamp: 200
+        }
+      ];
+
+      Raven._send({message: 'bar'});
+
+      var data = Raven._sendProcessedPayload.getCall(0).args[0];
+
+      assert.deepEqual(data.breadcrumbs.values, [
+        {
+          type: 'ui.something',
+          message: 'something click 100',
+          timestamp: 100
+        },
+        {
+          type: 'ui.something',
+          message: 'something click 200',
+          timestamp: 200
+        },
+        {
+          type: 'ui.something',
+          message: 'something click 300',
+          timestamp: 300
+        }
+      ]);
+    });
   });
 
   describe('makeRequest', function() {