Why won't the sidebar open on this page?

The most common reasons, and the fix.

Works in: the Humble browser extension

Short answer

Your browser doesn’t let extensions into its own pages or the Chrome Web Store. There, the Humble icon opens Humble Home in a new tab instead. On a normal web page, reload the page and try again.

Why it happens

  1. It is a browser page. Pages starting chrome://, edge:// or about:, and the Chrome Web Store, don’t allow extensions.
  2. The tab was open before Humble was installed or updated. Reload the tab.
  3. It is a file on your computer, such as a PDF. This may not work.
  4. You are signed out. The sidebar shows Welcome to Humble. Sign in with Google, Microsoft or your email.

Why was I signed out?

The extension follows the web app. If you sign out at my.humbleai.com, the extension signs out too. Sign in at my.humbleai.com and the extension signs in by itself.

If you see You have been logged out. Please log-in again., Humble couldn’t renew your sign-in. Sign in again.

Questions

It says "Uh oh! Something went wrong."

Reload the page. If it keeps happening, select Check latest version, or email hello@thehumbleai.com.

Does it work on Google Docs and Gmail?

Yes. They are normal web pages.

Last checked against the Humble app: 17 October 2026.