diff --git a/libraries/entities-renderer/src/RenderableWebEntityItem.cpp b/libraries/entities-renderer/src/RenderableWebEntityItem.cpp
index 8b41a85cf8..23f506a795 100644
--- a/libraries/entities-renderer/src/RenderableWebEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableWebEntityItem.cpp
@@ -39,6 +39,7 @@ const char* WebEntityRenderer::URL_PROPERTY = "url";
 const char* WebEntityRenderer::SCRIPT_URL_PROPERTY = "scriptURL";
 const char* WebEntityRenderer::GLOBAL_POSITION_PROPERTY = "globalPosition";
 const char* WebEntityRenderer::USE_BACKGROUND_PROPERTY = "useBackground";
+const char* WebEntityRenderer::USER_AGENT_PROPERTY = "userAgent";
 
 std::function<void(QString, bool, QSharedPointer<OffscreenQmlSurface>&, bool&)> WebEntityRenderer::_acquireWebSurfaceOperator = nullptr;
 std::function<void(QSharedPointer<OffscreenQmlSurface>&, bool&, std::vector<QMetaObject::Connection>&)> WebEntityRenderer::_releaseWebSurfaceOperator = nullptr;
@@ -194,6 +195,7 @@ void WebEntityRenderer::doRenderUpdateSynchronousTyped(const ScenePointer& scene
                     _webSurface->getRootItem()->setProperty(URL_PROPERTY, newSourceURL);
                     _webSurface->getRootItem()->setProperty(SCRIPT_URL_PROPERTY, _scriptURL);
                     _webSurface->getRootItem()->setProperty(USE_BACKGROUND_PROPERTY, _useBackground);
+                    _webSurface->getRootItem()->setProperty(USER_AGENT_PROPERTY, _userAgent);
                     _webSurface->getSurfaceContext()->setContextProperty(GLOBAL_POSITION_PROPERTY, vec3toVariant(_contextPosition));
                     _webSurface->setMaxFps((QUrl(newSourceURL).host().endsWith("youtube.com", Qt::CaseInsensitive)) ? YOUTUBE_MAX_FPS : _maxFPS);
                     ::hifi::scripting::setLocalAccessSafeThread(false);
@@ -231,6 +233,14 @@ void WebEntityRenderer::doRenderUpdateSynchronousTyped(const ScenePointer& scene
                         _useBackground = useBackground;
                     }
                 }
+                
+                { 
+                    auto userAgent = entity->getUserAgent();
+                    if (_userAgent != userAgent) {
+                        _webSurface->getRootItem()->setProperty(USER_AGENT_PROPERTY, userAgent);
+                        _userAgent = userAgent;
+                    }
+                }
 
                 {
                     auto contextPosition = entity->getWorldPosition();
diff --git a/libraries/entities-renderer/src/RenderableWebEntityItem.h b/libraries/entities-renderer/src/RenderableWebEntityItem.h
index 63ec722811..7288a380d3 100644
--- a/libraries/entities-renderer/src/RenderableWebEntityItem.h
+++ b/libraries/entities-renderer/src/RenderableWebEntityItem.h
@@ -36,6 +36,7 @@ public:
     static const char* SCRIPT_URL_PROPERTY;
     static const char* GLOBAL_POSITION_PROPERTY;
     static const char* USE_BACKGROUND_PROPERTY;
+    static const char* USER_AGENT_PROPERTY;
 
     static void setAcquireWebSurfaceOperator(std::function<void(const QString&, bool, QSharedPointer<OffscreenQmlSurface>&, bool&)> acquireWebSurfaceOperator) { _acquireWebSurfaceOperator = acquireWebSurfaceOperator; }
     static void acquireWebSurface(const QString& url, bool htmlContent, QSharedPointer<OffscreenQmlSurface>& webSurface, bool& cachedWebSurface) {
@@ -97,6 +98,7 @@ private:
     QString _scriptURL;
     uint8_t _maxFPS;
     bool _useBackground;
+    QString _userAgent;
     WebInputMode _inputMode;
 
     glm::vec3 _contextPosition;
diff --git a/libraries/entities/src/EntityItemProperties.cpp b/libraries/entities/src/EntityItemProperties.cpp
index ff55137a03..969be6589e 100644
--- a/libraries/entities/src/EntityItemProperties.cpp
+++ b/libraries/entities/src/EntityItemProperties.cpp
@@ -603,6 +603,7 @@ EntityPropertyFlags EntityItemProperties::getChangedProperties() const {
     CHECK_PROPERTY_CHANGE(PROP_INPUT_MODE, inputMode);
     CHECK_PROPERTY_CHANGE(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, showKeyboardFocusHighlight);
     CHECK_PROPERTY_CHANGE(PROP_WEB_USE_BACKGROUND, useBackground);
+    CHECK_PROPERTY_CHANGE(PROP_USER_AGENT, userAgent);
 
     // Polyline
     CHECK_PROPERTY_CHANGE(PROP_LINE_POINTS, linePoints);
@@ -1387,6 +1388,7 @@ EntityPropertyFlags EntityItemProperties::getChangedProperties() const {
  * @property {boolean} useBackground=true - <code>true</code> if the web entity should have a background,
  *     <code>false</code> if the web entity's background should be transparent. The webpage must have CSS properties for transparency set
  *     on the <code>background-color</code> for this property to have an effect.
+ * @property {string} userAgent="Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Mobile Safari/537.36" - The user agent for the web entity to use when visiting web pages.
  * @example <caption>Create a Web entity displaying at 1920 x 1080 resolution.</caption>
  * var METERS_TO_INCHES = 39.3701;
  * var entity = Entities.addEntity({
@@ -1825,6 +1827,7 @@ QScriptValue EntityItemProperties::copyToScriptValue(QScriptEngine* engine, bool
         COPY_PROPERTY_TO_QSCRIPTVALUE_GETTER(PROP_INPUT_MODE, inputMode, getInputModeAsString());
         COPY_PROPERTY_TO_QSCRIPTVALUE(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, showKeyboardFocusHighlight);
         COPY_PROPERTY_TO_QSCRIPTVALUE(PROP_WEB_USE_BACKGROUND, useBackground);
+        COPY_PROPERTY_TO_QSCRIPTVALUE(PROP_USER_AGENT, userAgent);
     }
 
     // PolyVoxel only
@@ -2207,6 +2210,7 @@ void EntityItemProperties::copyFromScriptValue(const QScriptValue& object, bool
     COPY_PROPERTY_FROM_QSCRIPTVALUE_ENUM(inputMode, InputMode);
     COPY_PROPERTY_FROM_QSCRIPTVALUE(showKeyboardFocusHighlight, bool, setShowKeyboardFocusHighlight);
     COPY_PROPERTY_FROM_QSCRIPTVALUE(useBackground, bool, setUseBackground);
+    COPY_PROPERTY_FROM_QSCRIPTVALUE(userAgent, QString, setUserAgent);
 
     // Polyline
     COPY_PROPERTY_FROM_QSCRIPTVALUE(linePoints, qVectorVec3, setLinePoints);
@@ -2499,6 +2503,7 @@ void EntityItemProperties::merge(const EntityItemProperties& other) {
     COPY_PROPERTY_IF_CHANGED(inputMode);
     COPY_PROPERTY_IF_CHANGED(showKeyboardFocusHighlight);
     COPY_PROPERTY_IF_CHANGED(useBackground);
+    COPY_PROPERTY_IF_CHANGED(userAgent);
 
     // Polyline
     COPY_PROPERTY_IF_CHANGED(linePoints);
@@ -2899,6 +2904,7 @@ bool EntityItemProperties::getPropertyInfo(const QString& propertyName, EntityPr
         ADD_PROPERTY_TO_MAP(PROP_INPUT_MODE, InputMode, inputMode, WebInputMode);
         ADD_PROPERTY_TO_MAP(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, ShowKeyboardFocusHighlight, showKeyboardFocusHighlight, bool);
         ADD_PROPERTY_TO_MAP(PROP_WEB_USE_BACKGROUND, useBackground, useBackground, bool);
+        ADD_PROPERTY_TO_MAP(PROP_USER_AGENT, UserAgent, userAgent, QString);
 
         // Polyline
         ADD_PROPERTY_TO_MAP(PROP_LINE_POINTS, LinePoints, linePoints, QVector<vec3>);
@@ -3330,6 +3336,7 @@ OctreeElement::AppendState EntityItemProperties::encodeEntityEditPacket(PacketTy
                 APPEND_ENTITY_PROPERTY(PROP_INPUT_MODE, (uint32_t)properties.getInputMode());
                 APPEND_ENTITY_PROPERTY(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, properties.getShowKeyboardFocusHighlight());
                 APPEND_ENTITY_PROPERTY(PROP_WEB_USE_BACKGROUND, properties.getUseBackground());
+                APPEND_ENTITY_PROPERTY(PROP_USER_AGENT, properties.getUserAgent());
             }
 
             if (properties.getType() == EntityTypes::Line) {
@@ -3806,6 +3813,7 @@ bool EntityItemProperties::decodeEntityEditPacket(const unsigned char* data, int
         READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_INPUT_MODE, WebInputMode, setInputMode);
         READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, bool, setShowKeyboardFocusHighlight);
         READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_WEB_USE_BACKGROUND, bool, setUseBackground);
+        READ_ENTITY_PROPERTY_TO_PROPERTIES(PROP_USER_AGENT, QString, setUserAgent);
     }
 
     if (properties.getType() == EntityTypes::Line) {
@@ -4194,6 +4202,7 @@ void EntityItemProperties::markAllChanged() {
     _inputModeChanged = true;
     _showKeyboardFocusHighlightChanged = true;
     _useBackgroundChanged = true;
+    _userAgentChanged = true;
 
     // Polyline
     _linePointsChanged = true;
@@ -4887,6 +4896,9 @@ QList<QString> EntityItemProperties::listChangedProperties() {
     if (useBackgroundChanged()) {
         out += "useBackground";
     }
+    if (userAgentChanged()) {
+        out += "userAgent";
+    }
 
     // Shape
     if (shapeChanged()) {
diff --git a/libraries/entities/src/EntityItemProperties.h b/libraries/entities/src/EntityItemProperties.h
index f7fde73430..df163e2cd6 100644
--- a/libraries/entities/src/EntityItemProperties.h
+++ b/libraries/entities/src/EntityItemProperties.h
@@ -367,6 +367,7 @@ public:
     DEFINE_PROPERTY_REF_ENUM(PROP_INPUT_MODE, InputMode, inputMode, WebInputMode, WebInputMode::TOUCH);
     DEFINE_PROPERTY_REF(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, ShowKeyboardFocusHighlight, showKeyboardFocusHighlight, bool, true);
     DEFINE_PROPERTY_REF(PROP_WEB_USE_BACKGROUND, UseBackground, useBackground, bool, true);
+    DEFINE_PROPERTY_REF(PROP_USER_AGENT, UserAgent, userAgent, QString, WebEntityItem::DEFAULT_USER_AGENT);
 
     // Polyline
     DEFINE_PROPERTY_REF(PROP_LINE_POINTS, LinePoints, linePoints, QVector<glm::vec3>, ENTITY_ITEM_DEFAULT_EMPTY_VEC3_QVEC);
diff --git a/libraries/entities/src/EntityPropertyFlags.h b/libraries/entities/src/EntityPropertyFlags.h
index 93bb8a89a7..76585450b8 100644
--- a/libraries/entities/src/EntityPropertyFlags.h
+++ b/libraries/entities/src/EntityPropertyFlags.h
@@ -319,6 +319,7 @@ enum EntityPropertyList {
     PROP_INPUT_MODE = PROP_DERIVED_4,
     PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT = PROP_DERIVED_5,
     PROP_WEB_USE_BACKGROUND = PROP_DERIVED_6,
+    PROP_USER_AGENT = PROP_DERIVED_7,
 
     // Polyline
     PROP_LINE_POINTS = PROP_DERIVED_0,
diff --git a/libraries/entities/src/WebEntityItem.cpp b/libraries/entities/src/WebEntityItem.cpp
index 61a1ed18c5..1e3b932b6a 100644
--- a/libraries/entities/src/WebEntityItem.cpp
+++ b/libraries/entities/src/WebEntityItem.cpp
@@ -25,6 +25,7 @@
 #include "EntityTreeElement.h"
 
 const QString WebEntityItem::DEFAULT_SOURCE_URL = NetworkingConstants::WEB_ENTITY_DEFAULT_SOURCE_URL;
+const QString WebEntityItem::DEFAULT_USER_AGENT = NetworkingConstants::WEB_ENTITY_DEFAULT_USER_AGENT;
 const uint8_t WebEntityItem::DEFAULT_MAX_FPS = 10;
 
 EntityItemPointer WebEntityItem::factory(const EntityItemID& entityID, const EntityItemProperties& properties) {
@@ -63,6 +64,7 @@ EntityItemProperties WebEntityItem::getProperties(const EntityPropertyFlags& des
     COPY_ENTITY_PROPERTY_TO_PROPERTIES(inputMode, getInputMode);
     COPY_ENTITY_PROPERTY_TO_PROPERTIES(showKeyboardFocusHighlight, getShowKeyboardFocusHighlight);
     COPY_ENTITY_PROPERTY_TO_PROPERTIES(useBackground, getUseBackground);
+    COPY_ENTITY_PROPERTY_TO_PROPERTIES(userAgent, getUserAgent);
     return properties;
 }
 
@@ -85,6 +87,7 @@ bool WebEntityItem::setSubClassProperties(const EntityItemProperties& properties
     SET_ENTITY_PROPERTY_FROM_PROPERTIES(inputMode, setInputMode);
     SET_ENTITY_PROPERTY_FROM_PROPERTIES(showKeyboardFocusHighlight, setShowKeyboardFocusHighlight);
     SET_ENTITY_PROPERTY_FROM_PROPERTIES(useBackground, setUseBackground);
+    SET_ENTITY_PROPERTY_FROM_PROPERTIES(userAgent, setUserAgent);
 
     return somethingChanged;
 }
@@ -115,6 +118,7 @@ int WebEntityItem::readEntitySubclassDataFromBuffer(const unsigned char* data, i
     READ_ENTITY_PROPERTY(PROP_INPUT_MODE, WebInputMode, setInputMode);
     READ_ENTITY_PROPERTY(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, bool, setShowKeyboardFocusHighlight);
     READ_ENTITY_PROPERTY(PROP_WEB_USE_BACKGROUND, bool, setUseBackground);
+    READ_ENTITY_PROPERTY(PROP_USER_AGENT, QString, setUserAgent);
 
     return bytesRead;
 }
@@ -133,6 +137,7 @@ EntityPropertyFlags WebEntityItem::getEntityProperties(EncodeBitstreamParams& pa
     requestedProperties += PROP_INPUT_MODE;
     requestedProperties += PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT;
     requestedProperties += PROP_WEB_USE_BACKGROUND;
+    requestedProperties += PROP_USER_AGENT;
     return requestedProperties;
 }
 
@@ -160,6 +165,7 @@ void WebEntityItem::appendSubclassData(OctreePacketData* packetData, EncodeBitst
     APPEND_ENTITY_PROPERTY(PROP_INPUT_MODE, (uint32_t)getInputMode());
     APPEND_ENTITY_PROPERTY(PROP_SHOW_KEYBOARD_FOCUS_HIGHLIGHT, getShowKeyboardFocusHighlight());
     APPEND_ENTITY_PROPERTY(PROP_WEB_USE_BACKGROUND, getUseBackground());
+    APPEND_ENTITY_PROPERTY(PROP_USER_AGENT, getUserAgent());
 }
 
 glm::vec3 WebEntityItem::getRaycastDimensions() const {
@@ -365,6 +371,17 @@ bool WebEntityItem::getUseBackground() const {
     return resultWithReadLock<bool>([&] { return _useBackground; });
 }
 
+void WebEntityItem::setUserAgent(const QString& value) {
+    withWriteLock([&] {
+        _needsRenderUpdate |= _userAgent != value;
+        _userAgent = value;
+    });
+}
+
+QString WebEntityItem::getUserAgent() const {
+    return resultWithReadLock<QString>([&] { return _userAgent; });
+}
+
 PulsePropertyGroup WebEntityItem::getPulseProperties() const {
     return resultWithReadLock<PulsePropertyGroup>([&] {
         return _pulseProperties;
diff --git a/libraries/entities/src/WebEntityItem.h b/libraries/entities/src/WebEntityItem.h
index 4b39261bfb..f5cbac43cc 100644
--- a/libraries/entities/src/WebEntityItem.h
+++ b/libraries/entities/src/WebEntityItem.h
@@ -89,6 +89,10 @@ public:
     
     bool getUseBackground() const;
     void setUseBackground(bool value);
+    
+    static const QString DEFAULT_USER_AGENT;
+    QString getUserAgent() const;
+    void setUserAgent(const QString& value);
 
     PulsePropertyGroup getPulseProperties() const;
 
@@ -105,6 +109,7 @@ protected:
     WebInputMode _inputMode;
     bool _showKeyboardFocusHighlight;
     bool _useBackground;
+    QString _userAgent;
     bool _localSafeContext { false };
 };
 
diff --git a/libraries/networking/src/NetworkingConstants.h b/libraries/networking/src/NetworkingConstants.h
index b64a0845ac..a3818930dd 100644
--- a/libraries/networking/src/NetworkingConstants.h
+++ b/libraries/networking/src/NetworkingConstants.h
@@ -46,6 +46,7 @@ namespace NetworkingConstants {
     
     // WebEntity Defaults
     const QString WEB_ENTITY_DEFAULT_SOURCE_URL = "https://vircadia.com/";
+    const QString WEB_ENTITY_DEFAULT_USER_AGENT = "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Mobile Safari/537.36";
     
     const QString DEFAULT_AVATAR_COLLISION_SOUND_URL = "https://hifi-public.s3.amazonaws.com/sounds/Collisions-otherorganic/Body_Hits_Impact.wav";
 
diff --git a/libraries/networking/src/udt/PacketHeaders.h b/libraries/networking/src/udt/PacketHeaders.h
index fc74f4459c..ced3d8756b 100644
--- a/libraries/networking/src/udt/PacketHeaders.h
+++ b/libraries/networking/src/udt/PacketHeaders.h
@@ -283,6 +283,7 @@ enum class EntityVersion : PacketVersion {
     ZoneOcclusion,
     ModelBlendshapes,
     TransparentWeb,
+    UserAgent,
 
     // Add new versions above here
     NUM_PACKET_TYPE,
diff --git a/scripts/system/create/assets/data/createAppTooltips.json b/scripts/system/create/assets/data/createAppTooltips.json
index 478793ab78..f898d594c6 100644
--- a/scripts/system/create/assets/data/createAppTooltips.json
+++ b/scripts/system/create/assets/data/createAppTooltips.json
@@ -616,6 +616,9 @@
     "scriptURL": {
         "tooltip": "The URL of a script to inject into the web page."
     },
+    "userAgent": {
+        "tooltip": "The user agent that the web entity will use when visiting web pages."
+    },
     "alignToGrid": {
         "tooltip": "Used to align entities to the grid, or floor of the environment.",
         "skipJSProperty": true
diff --git a/scripts/system/create/entityProperties/html/js/entityProperties.js b/scripts/system/create/entityProperties/html/js/entityProperties.js
index f3f92a887e..6898bb1b5c 100644
--- a/scripts/system/create/entityProperties/html/js/entityProperties.js
+++ b/scripts/system/create/entityProperties/html/js/entityProperties.js
@@ -800,6 +800,12 @@ const GROUPS = [
                 type: "string",
                 propertyID: "scriptURL",
                 placeholder: "URL",
+            },
+            {
+                label: "User Agent",
+                type: "string",
+                propertyID: "userAgent",
+                placeholder: "User Agent",
             }
         ]
     },