diff --git a/.changeset/lovely-gifts-itch.md b/.changeset/lovely-gifts-itch.md
new file mode 100644
index 0000000000..3fd1f5a38f
--- /dev/null
+++ b/.changeset/lovely-gifts-itch.md
@@ -0,0 +1,5 @@
+---
+'@backstage/core-components': patch
+---
+
+Fix EntityPage tab scrolling overflow bug on Firefox
diff --git a/packages/core-components/src/layout/HeaderTabs/HeaderTabs.tsx b/packages/core-components/src/layout/HeaderTabs/HeaderTabs.tsx
index bee4bdfce2..0a937683a5 100644
--- a/packages/core-components/src/layout/HeaderTabs/HeaderTabs.tsx
+++ b/packages/core-components/src/layout/HeaderTabs/HeaderTabs.tsx
@@ -35,6 +35,7 @@ const useStyles = makeStyles(
       gridArea: 'pageSubheader',
       backgroundColor: theme.palette.background.paper,
       paddingLeft: theme.spacing(3),
+      minWidth: 0,
     },
     defaultTab: {
       padding: theme.spacing(3, 3),