diff --git a/chrome/privatemode_indicator_as_menu_button.css b/chrome/privatemode_indicator_as_menu_button.css
new file mode 100644
index 0000000..a9a77fc
--- /dev/null
+++ b/chrome/privatemode_indicator_as_menu_button.css
@@ -0,0 +1,9 @@
+/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/privatemode_indicator_as_menu_button.css made available under Mozilla Public License v. 2.0
+See the above repository for updates as well as full license text. */
+
+/* Removes the private-browsing-mode indicator from tabs toolbar and changes the menu-button icon to the private-browsing indicator in private windows */
+
+.private-browsing-indicator{ display: none }
+:root[privatebrowsingmode="temporary"] #PanelUI-menu-button{
+  list-style-image: url("chrome://browser/skin/private-browsing.svg") !important;
+}
\ No newline at end of file
diff --git a/html_resources/tagmap.json b/html_resources/tagmap.json
index 49b8358..eed76c2 100644
--- a/html_resources/tagmap.json
+++ b/html_resources/tagmap.json
@@ -113,5 +113,6 @@
 "custom_menupopup_check_icons.css":["icon","menu","minimal","popup"],
 "show_toolbars_in_popup_windows.css":["toolbars","popup"],
 "centered_tab_content.css":["tab","icon"],
-"window_control_fallback_for_custom_windows_theme.css":["window-controls","buttons","colors","patch"]
+"window_control_fallback_for_custom_windows_theme.css":["window-controls","buttons","colors","patch"],
+"privatemode_indicator_as_menu_button.css":["icon","buttons"]
 }
diff --git a/tags.csv b/tags.csv
index a178750..58dd06c 100644
--- a/tags.csv
+++ b/tags.csv
@@ -113,3 +113,4 @@ custom_menupopup_check_icons.css,icon,menu,minimal,popup
 show_toolbars_in_popup_windows.css,toolbars,popup
 centered_tab_content.css,tab,icon
 window_control_fallback_for_custom_windows_theme.css,window-controls,buttons,colors,patch
+privatemode_indicator_as_menu_button.css,icon,buttons