Kindle Extension

The Becoming Chrome extension is the fastest way to import highlights from your Kindle library. It syncs directly from Amazon’s Kindle Notebook.

The same extension can also save web-article selections and YouTube videos to Becoming.

Prerequisites

• Google Chrome on a desktop computer (the extension isn’t available on mobile)
• An Amazon account with Kindle highlights, signed in at read.amazon.com
• A Becoming account (signed in to the web app)

Installation

1. Open the Becoming extension on the Chrome Web Store.
2. Click Add to Chrome.
3. Click the puzzle piece icon in Chrome’s toolbar and pin the Becoming extension for easy access.

You can also install the extension directly from the sync flow below.

How to Sync

1. Sign in to the Becoming web app first. The extension uses your web app session.
2. In your library, choose Add source and pick Kindle (or open Integrations → Kindle). This opens the Connect Kindle screen.
3. Make sure you’re signed in to Amazon at read.amazon.com in the same browser — that’s where Becoming reads your highlights from.
4. Click Install Extension. If the extension isn’t installed yet, this opens the Chrome Web Store — add it, then return to this screen and click Install Extension again.
5. Once the extension is installed, clicking Install Extension starts the sync. A Syncing Kindle highlights dialog runs while Becoming fetches your Kindle Notebook in the background — there’s no separate window or tab to watch. Your books, highlights, and notes appear when it finishes.

What Gets Imported

• Books — Title, author, and cover information.
• Highlights — All highlighted passages from each book.
• Notes — Any notes you’ve added to highlights in Kindle.

Deduplication

If you sync multiple times, Becoming automatically detects highlights you’ve already imported. Only new highlights are added — no duplicates.

Troubleshooting

Import doesn’t find any books

• Make sure you’re signed in to your Amazon account at read.amazon.com in the same browser.
• Open read.amazon.com/notebook and confirm your books and highlights show there — some books don’t sync their highlights to the cloud.
• Make sure the Becoming extension is installed and you’re signed in to the Becoming web app.

Nothing happens when you click Install Extension

• If the extension isn’t installed yet, the button opens the Chrome Web Store instead of syncing. Add the extension, then return to the screen and click Install Extension again.
• Make sure you’re signed in to the Becoming web app.

Import seems stuck

• Large libraries may take a few minutes. Wait for the Syncing Kindle highlights dialog to finish.
• If it’s been more than a few minutes, reload the page and click Install Extension again.

For more sync issues, see Kindle Sync Issues →