diff --git a/chrome/autohide_toolbox.css b/chrome/autohide_toolbox.css
index 35897be..8a31682 100644
--- a/chrome/autohide_toolbox.css
+++ b/chrome/autohide_toolbox.css
@@ -15,7 +15,7 @@ See the above repository for updates as well as full license text. */
   --uc-toolbox-rotation: 89deg;
 }
 
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
 
   :root[tabsintitlebar][sizemode="maximized"]:not([inDOMFullscreen]) > body > box{ margin-top: 8px !important; }
 
diff --git a/chrome/combined_tabs_and_main_toolbars.css b/chrome/combined_tabs_and_main_toolbars.css
index d4e70dd..f275efd 100644
--- a/chrome/combined_tabs_and_main_toolbars.css
+++ b/chrome/combined_tabs_and_main_toolbars.css
@@ -27,7 +27,7 @@ See the above repository for updates as well as full license text. */
 #navigator-toolbox{ --tab-min-height: 40px }
 :root[uidensity="compact"] #navigator-toolbox{ --tab-min-height: 32px }
 
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
   :root[sizemode="maximized"] > body > box{ margin-top: 8px }
 }
 
diff --git a/chrome/hide_tabs_with_one_tab.css b/chrome/hide_tabs_with_one_tab.css
index 68f2ea1..d9630df 100644
--- a/chrome/hide_tabs_with_one_tab.css
+++ b/chrome/hide_tabs_with_one_tab.css
@@ -49,7 +49,7 @@ See the above repository for updates as well as full license text. */
   background-color: transparent !important;
 }
 /* Extra top padding  in maximized window */
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
   :root[sizemode="maximized"] #navigator-toolbox{ padding-top:7px !important; }
 }
 /* Fix window controls not being clickable */
diff --git a/chrome/hide_tabs_with_one_tab_w_window_controls.css b/chrome/hide_tabs_with_one_tab_w_window_controls.css
index f34d6fc..834d77d 100644
--- a/chrome/hide_tabs_with_one_tab_w_window_controls.css
+++ b/chrome/hide_tabs_with_one_tab_w_window_controls.css
@@ -54,7 +54,7 @@ Window controls will be all wrong without it
   background-color: transparent !important;
 }
 /* Extra top padding  in maximized window */
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
   :root[sizemode="maximized"] #navigator-toolbox{ padding-top:7px !important; }
 }
 /* Window controls in nav-bar */
diff --git a/chrome/menubar_in_main_toolbar.css b/chrome/menubar_in_main_toolbar.css
index ab43825..33103f2 100644
--- a/chrome/menubar_in_main_toolbar.css
+++ b/chrome/menubar_in_main_toolbar.css
@@ -7,7 +7,7 @@ See the above repository for updates as well as full license text. */
 :root[uidensity="compact"] #navigator-toolbox{ --uc-menubar-height: 30px }
 
 #titlebar{ -moz-box-direction: reverse; -moz-appearance: none !important; }
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
   :root[sizemode="maximized"][tabsintitlebar] #TabsToolbar{ margin-top: 8px !important; }
 }
 #toolbar-menubar{
diff --git a/chrome/multi-row_tabs_below_content.css b/chrome/multi-row_tabs_below_content.css
index 55de4bc..b4857a1 100644
--- a/chrome/multi-row_tabs_below_content.css
+++ b/chrome/multi-row_tabs_below_content.css
@@ -28,7 +28,7 @@ See the above repository for updates as well as full license text. */
     --multirow-tab-min-width: 100px;
     --multirow-tab-dynamic-width: 1; /* Change to 0 for fixed-width tabs using the above width. */
   }
-  @media (-moz-os-version: windows-win10){
+  @media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
     :root[sizemode="maximized"]{ --multirow-top-padding: 8px }
   }
   :root[uidensity="compact"]{--multirow-toolbar-height: 32px}
diff --git a/chrome/show_navbar_on_focus_only.css b/chrome/show_navbar_on_focus_only.css
index f6fa2de..667caa3 100644
--- a/chrome/show_navbar_on_focus_only.css
+++ b/chrome/show_navbar_on_focus_only.css
@@ -10,7 +10,7 @@ See the above repository for updates as well as full license text. */
 :root:not([customizing]) #titlebar{ -moz-appearance: none !important; }
 
 /* -moz-appearance: none on titlebar breaks window margins, so re-adjust that */
-@media (-moz-os-version: windows-win10){
+@media (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
 
   :root[sizemode="maximized"]:not([inDOMFullscreen]){ margin-top: 8px !important; }
 
diff --git a/chrome/show_window_title_in_menubar.css b/chrome/show_window_title_in_menubar.css
index 74c6c6d..58cb94b 100644
--- a/chrome/show_window_title_in_menubar.css
+++ b/chrome/show_window_title_in_menubar.css
@@ -21,7 +21,7 @@ See the above repository for updates as well as full license text. */
     overflow-x: -moz-hidden-unscrollable;
     text-overflow: ellipsis;
   }
-  @media (-moz-os-version:windows-win10){
+  @media (-moz-os-version: windows-win7),(-moz-os-version:windows-win10){
     :root[sizemode="maximized"] > head > title { padding-top: 10px }
   }
 }
\ No newline at end of file
diff --git a/chrome/tabs_on_bottom.css b/chrome/tabs_on_bottom.css
index 651ce97..037599a 100644
--- a/chrome/tabs_on_bottom.css
+++ b/chrome/tabs_on_bottom.css
@@ -16,7 +16,7 @@ linux_gtk_window_control_patch.css
 */
 
 :root{ --uc-titlebar-padding: 0px; }
-@media (-moz-os-version: windows-win10){
+@media  (-moz-os-version: windows-win7),(-moz-os-version: windows-win10){
   :root[sizemode="maximized"][tabsintitlebar]{ --uc-titlebar-padding: 8px }
 }
 #toolbar-menubar[autohide="true"] > .titlebar-buttonbox-container,