diff --git a/src/background/background.ts b/src/background/background.ts
index c871b96..c841e9e 100644
--- a/src/background/background.ts
+++ b/src/background/background.ts
@@ -43,6 +43,7 @@ const injectScript = async (tabID: number, enabled?: boolean) => {
 
 com.setEnabledCallback = async (v: boolean, s: Runtime.MessageSender) => {
 	const tab = await getTabID(s);
+	if ((await isEnabledSession(tab)) == v) return;
 
 	injectScript(tab);
 	await setEnabledSession(tab, v);