diff --git a/website_and_docs/content/documentation/webdriver/browsers/firefox.en.md b/website_and_docs/content/documentation/webdriver/browsers/firefox.en.md
index e38174e824e5..31d0987a5eb4 100644
--- a/website_and_docs/content/documentation/webdriver/browsers/firefox.en.md
+++ b/website_and_docs/content/documentation/webdriver/browsers/firefox.en.md
@@ -451,3 +451,5 @@ please refer to the
 {{< badge-code >}}
 {{< /tab >}}
 {{< /tabpane >}}
+
+**Note**: As of Firefox 138, geckodriver needs to be started with the argument `--allow-system-access` to switch the context to `CHROME`.
diff --git a/website_and_docs/content/documentation/webdriver/browsers/firefox.ja.md b/website_and_docs/content/documentation/webdriver/browsers/firefox.ja.md
index 664ab91d6bf6..569eeb89e964 100644
--- a/website_and_docs/content/documentation/webdriver/browsers/firefox.ja.md
+++ b/website_and_docs/content/documentation/webdriver/browsers/firefox.ja.md
@@ -447,3 +447,5 @@ IDはアドオンインストール時の戻り値から取得できます。
 {{< badge-code >}}
 {{< /tab >}}
 {{< /tabpane >}}
+
+**Note**: As of Firefox 138, geckodriver needs to be started with the argument `--allow-system-access` to switch the context to `CHROME`.
diff --git a/website_and_docs/content/documentation/webdriver/browsers/firefox.pt-br.md b/website_and_docs/content/documentation/webdriver/browsers/firefox.pt-br.md
index 0603016ae1d2..f79da783061d 100644
--- a/website_and_docs/content/documentation/webdriver/browsers/firefox.pt-br.md
+++ b/website_and_docs/content/documentation/webdriver/browsers/firefox.pt-br.md
@@ -456,3 +456,5 @@ please refer to the
 {{< badge-code >}}
 {{< /tab >}}
 {{< /tabpane >}}
+
+**Note**: As of Firefox 138, geckodriver needs to be started with the argument `--allow-system-access` to switch the context to `CHROME`.
diff --git a/website_and_docs/content/documentation/webdriver/browsers/firefox.zh-cn.md b/website_and_docs/content/documentation/webdriver/browsers/firefox.zh-cn.md
index d1384cebc591..8e3728615a14 100644
--- a/website_and_docs/content/documentation/webdriver/browsers/firefox.zh-cn.md
+++ b/website_and_docs/content/documentation/webdriver/browsers/firefox.zh-cn.md
@@ -453,3 +453,5 @@ please refer to the
 {{< badge-code >}}
 {{< /tab >}}
 {{< /tabpane >}}
+
+**Note**: As of Firefox 138, geckodriver needs to be started with the argument `--allow-system-access` to switch the context to `CHROME`.