Update limits.mdx (cloudflare#25070)

* Update limits.mdx

new limits FAQ about extending browser timeout

* Update limits.mdx

* Update src/content/docs/browser-rendering/platform/limits.mdx

Co-authored-by: ToriLindsay <[email protected]>

* Update src/content/docs/browser-rendering/platform/limits.mdx

Co-authored-by: ToriLindsay <[email protected]>

* Update src/content/docs/browser-rendering/platform/limits.mdx

---------

Co-authored-by: ToriLindsay <[email protected]>

Author: kathayl

src/content/docs/browser-rendering/platform/limits.mdx

@@ -63,3 +63,13 @@ If you recently upgraded to the [Workers Paid plan](/workers/platform/pricing/)
   file="manage-concurrency-faq"
   product="browser-rendering"
 />
+
+### Can I increase the browser timeout?
+
+By default, a browser instance will time out after 60 seconds of inactivity. If you want to keep the browser open longer, you can use the [`keep_alive` option](/browser-rendering/platform/puppeteer/#keep-alive) which allows you to extend the timeout to up to 10 minutes.
+
+### Is there a maximum session duration?
+
+There is no fixed maximum lifetime for a browser session as long as it remains active. By default, a browser will close after one minute of inactivity, but you can [extend this inactivity window](#can-i-increase-the-browser-timeout). Sessions will also be closed when Browser Rendering rolls out a new release.
+
+