diff --git a/changes/changelog.d/722.bugfix b/changes/changelog.d/722.bugfix
new file mode 100644
index 000000000..9f230ae61
--- /dev/null
+++ b/changes/changelog.d/722.bugfix
@@ -0,0 +1 @@
+Fixed non-transparent background for volume range on Firefox (#722)
\ No newline at end of file
diff --git a/front/src/components/audio/Player.vue b/front/src/components/audio/Player.vue
index 6d506b966..2b1bd2968 100644
--- a/front/src/components/audio/Player.vue
+++ b/front/src/components/audio/Player.vue
@@ -499,6 +499,7 @@ export default {
     bottom: 1.1rem;
     left: 25%;
     cursor: pointer;
+    background-color: transparent;
   }
   input[type="range"]:focus {
     outline: none;