diff --git a/docs/quick-start-guide.adoc b/docs/quick-start-guide.adoc
index fb3d09b..9e6d950 100644
--- a/docs/quick-start-guide.adoc
+++ b/docs/quick-start-guide.adoc
@@ -8,37 +8,31 @@ To use Go Grid Router do the following:
 ----
 $ mkdir -p /etc/grid-router/quota
 ----
+
 . Create ```users.htpasswd``` file:
 +
 ----
 $ htpasswd -bc /etc/grid-router/users.htpasswd test test-password
 ----
-. Start Selenium standalone server on port 4445:
-+
-----
-$ java -jar selenium-server-standalone.jar -port 4445
-----
-NOTE: We are showing Selenium server command here because it is a well-known example. We recommend you to use http://aerokube.com/selenoid/latest/[Selenoid] instead - it is more efficient.  
+
+. Start https://aerokube.com/selenoid/latest/[Selenoid] on host `selenoid.example.com` and port `4444`.
 . Create quota file (use correct browser name and version):
 +
 ----
 $ cat /etc/grid-router/quota/test.xml
 <qa:browsers xmlns:qa="urn:config.gridrouter.qatools.ru">
-<browser name="firefox" defaultVersion="45.0">
-    <version number="45.0">
+<browser name="firefox" defaultVersion="88.0">
+    <version number="88.0">
         <region name="1">
-            <host name="localhost" port="4445" count="1"/>
+            <host name="selenoid.example.com" port="4444" count="1"/>
         </region>
     </version>
 </browser>
 </qa:browsers>
 ----
 +
-NOTE: File name should correspond to user name you added to `htpasswd` file. For user ```test``` we added on previous steps you should create ```test.xml```.
-+
-NOTE: For Mac OS instead of "localhost" you have to use "docker.for.mac.localhost". 
-link:++https://docs.docker.com/docker-for-mac/networking/#use-cases-and-workarounds++[Docker for Mac - Networking].
-+
+NOTE: File name should correspond to user name you added to `htpasswd` file.
+For user `test` we added on previous steps you should create `test.xml`.
 . Start Ggr container:
 +
 ----
@@ -46,6 +40,7 @@ link:++https://docs.docker.com/docker-for-mac/networking/#use-cases-and-workarou
     ggr -v /etc/grid-router/:/etc/grid-router:ro \
     --net host aerokube/ggr:latest-release
 ----
+
 . Access Ggr on port 4444 in the same way you do for Selenium Hub but using the following url:
 +
 ----
diff --git a/proxy.go b/proxy.go
index b25dea4..389525b 100644
--- a/proxy.go
+++ b/proxy.go
@@ -88,28 +88,28 @@ type Routes map[string]*Host
 
 type caps map[string]interface{}
 
-func (c caps) capabilities(fn func(m map[string]interface{}, w3c bool)) {
+func (c caps) capabilities(fn func(m map[string]interface{}, w3c bool, extension bool)) {
 	if desiredCapabilities, ok := c[keys.desiredCapabilities]; ok {
 		if m, ok := desiredCapabilities.(map[string]interface{}); ok {
-			fn(m, false)
+			fn(m, false, false)
 		}
-	} else {
-		if w3cCapabilities, ok := c[keys.w3cCapabilities]; ok {
-			if m, ok := w3cCapabilities.(map[string]interface{}); ok {
-				if alwaysMatch, ok := m[keys.alwaysMatch]; ok {
-					if m, ok := alwaysMatch.(map[string]interface{}); ok {
-						fn(m, true)
-						for k, v := range m { // Extension capabilities have ":" in key
-							if ec, ok := v.(map[string]interface{}); ok && strings.Contains(k, ":") {
-								fn(ec, true)
-							}
+	}
+	if w3cCapabilities, ok := c[keys.w3cCapabilities]; ok {
+		if m, ok := w3cCapabilities.(map[string]interface{}); ok {
+			if alwaysMatch, ok := m[keys.alwaysMatch]; ok {
+				if m, ok := alwaysMatch.(map[string]interface{}); ok {
+					fn(m, true, false)
+					for k, v := range m { // Extension capabilities have ":" in key
+						if ec, ok := v.(map[string]interface{}); ok && strings.Contains(k, ":") {
+							fn(ec, true, true)
 						}
 					}
 				}
 			}
 		}
+	} else {
+		fn(make(map[string]interface{}), false, false)
 	}
-	fn(make(map[string]interface{}), false)
 }
 
 func (c caps) capability(k string) string {
@@ -118,7 +118,7 @@ func (c caps) capability(k string) string {
 
 func (c caps) capabilityJsonWireW3C(jsonWire, W3C string) string {
 	result := ""
-	c.capabilities(func(m map[string]interface{}, w3c bool) {
+	c.capabilities(func(m map[string]interface{}, w3c bool, _ bool) {
 		k := jsonWire
 		if w3c {
 			k = W3C
@@ -163,7 +163,10 @@ func (c caps) labels() string {
 }
 
 func (c caps) setVersion(version string) {
-	c.capabilities(func(m map[string]interface{}, w3c bool) {
+	c.capabilities(func(m map[string]interface{}, w3c bool, extension bool) {
+		if extension {
+			return
+		}
 		if w3c {
 			m["browserVersion"] = version
 		} else {
diff --git a/proxy_test.go b/proxy_test.go
index a22294f..179dd33 100644
--- a/proxy_test.go
+++ b/proxy_test.go
@@ -920,6 +920,12 @@ func TestStartSessionWithDefaultVersionW3C(t *testing.T) {
 		AssertThat(t, err, Is{nil})
 		AssertThat(t, sess["capabilities"]["alwaysMatch"]["browserVersion"], EqualTo{"2.0"})
 
+		so, ok := sess["capabilities"]["alwaysMatch"]["selenoid:options"]
+		AssertThat(t, ok, Is{true})
+		selenoidOptions, ok := so.(map[string]interface{})
+		AssertThat(t, ok, Is{true})
+		_, ok = selenoidOptions["browserVersion"]
+		AssertThat(t, ok, Is{false})
 	}))
 	selenium := httptest.NewServer(mux)
 	defer selenium.Close()