diff --git a/src/interceptors/chromium-based-interceptors.ts b/src/interceptors/chromium-based-interceptors.ts
index d5f9fef7..d03b5769 100644
--- a/src/interceptors/chromium-based-interceptors.ts
+++ b/src/interceptors/chromium-based-interceptors.ts
@@ -96,7 +96,7 @@ abstract class FreshChromiumBasedInterceptor implements Interceptor {
     }
 
     async activate(proxyPort: number, options: { webExtensionEnabled?: boolean } = {}) {
-        if (this.isActive(proxyPort)) return;
+        const alreadyActive = this.isActive(proxyPort);
 
         const hideWarningServer = new HideWarningServer(this.config);
         await hideWarningServer.start('https://amiusing.httptoolkit.tech');
@@ -119,6 +119,8 @@ abstract class FreshChromiumBasedInterceptor implements Interceptor {
         await hideWarningServer.completedPromise;
         await hideWarningServer.stop();
 
+        if (alreadyActive) return; // If we're just opening a new tab, we're done, don't track the process.
+
         this.activeBrowsers[proxyPort] = browser;
         browser.process.once('close', async () => {
             delete this.activeBrowsers[proxyPort];