diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index b5901ec8b..7a85730ff 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -3125,6 +3125,7 @@ vAPI.toolbarButton = {
             '#' + this.viewId + ',',
             '#' + this.viewId + ' > iframe {',
                 'height: 290px;',
+                'max-width: none !important;',
                 'min-width: 0 !important;',
                 'overflow: hidden !important;',
                 'padding: 0 !important;',