修改点击逻辑

background.js

@@ -1,4 +1,13 @@
 chrome.browserAction.onClicked.addListener(function(tab) {
-    chrome.tabs.create({ url: 'chrome://flags/#enable-force-dark' });
+    chrome.tabs.query({ active: true, currentWindow: true }, function(tabs) {
+      var tab = tabs[0];
+      var url = tab.url;
+  
+      if (url === 'chrome://flags/#enable-force-dark') {
+        chrome.tabs.update(tab.id, { url: 'chrome://flags/' });
+      } else {
+        chrome.tabs.update(tab.id, { url: 'chrome://flags/#enable-force-dark' });
+      }
+    });
   });
   

manifest.json

@@ -8,14 +8,12 @@
       "48": "icon.png",
       "128": "icon.png"
     },
-  "browser_action": {
-    "default_popup": "popup.html"
-  },
-  "permissions": [
-    "tabs"
-  ],
     "background": {
       "scripts": ["background.js"],
       "persistent": false
+    },
+    "permissions": [
+      "tabs"
+    ]
   }
-}
+