> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.cookbookmanager.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Enable Service Workers for CookBook

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# Fix the “Unsupported browser” error (enable Service Workers)

If Chrome or Firefox shows:

> __“Unsupported: This browser does not appear to be supported. Please ensure you have a modern browser … and have Service Workers enabled.”__

do the following:

**Chrome**

1. Type `chrome://flags/#enable-service-worker` in the address bar.
2. Enable **Service Worker**.
3. Relaunch Chrome and sign in again at **app.cookbookmanager.com**.

**Firefox**

1. Type `about:config` in the address bar and accept the warning.
2. Search for `dom.serviceWorkers.enabled` and set it to **true**.
3. Restart Firefox and sign in again.