diff --git a/chrome/overlay_tab_audio_icons.css b/chrome/overlay_tab_audio_icons.css
new file mode 100644
index 0000000..e03c571
--- /dev/null
+++ b/chrome/overlay_tab_audio_icons.css
@@ -0,0 +1,20 @@
+/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/overlay_tab_audio_icons.css made available under Mozilla Public License v. 2.0
+See the above repository for updates as well as full license text. */
+
+/* Makes the tab audio indicator show as overlay in all tabs, not just pinned ones */
+
+.tab-icon-image,
+.tab-throbber{ opacity: 1 !important; }
+
+.tab-icon-overlay:not([crashed]){
+    top: -5.5px;
+    inset-inline-end: -6px;
+    z-index: 1;
+    padding: 2px;
+    opacity: 1 !important;
+    stroke: var(--tab-icon-overlay-stroke, black) !important;
+}
+.tab-icon-overlay:not([crashed]):hover{
+  background-color: var(--tab-icon-overlay-stroke, black) !important;
+  border-radius: 10px !important;
+}
\ No newline at end of file
diff --git a/html_resources/tagmap.json b/html_resources/tagmap.json
index 43c65bd..275afc5 100644
--- a/html_resources/tagmap.json
+++ b/html_resources/tagmap.json
@@ -127,5 +127,6 @@
 "window_control_placeholder_support.css":["window-control","patch"],
 "non_floating_sharp_tabs.css":["tab","proton","buttons"],
 "autohide_main_toolbar.css":["toolbars","autohide","nav-bar"],
-"sharp_menupopup_corners.css":["popup","menu","proton"]
+"sharp_menupopup_corners.css":["popup","menu","proton"],
+"overlay_tab_audio_icons.css":["icon","tab"]
 }
diff --git a/tags.csv b/tags.csv
index 17541c2..db12cdc 100644
--- a/tags.csv
+++ b/tags.csv
@@ -127,3 +127,4 @@ window_control_placeholder_support.css,window-control,patch
 non_floating_sharp_tabs.css,tab,proton,buttons
 autohide_main_toolbar.css,toolbars,autohide,nav-bar
 sharp_menupopup_corners.css,popup,menu,proton
+overlay_tab_audio_icons.css,icon,tab