If your Kindle app on the Mac starts crashing on startup here’s how I fixed it.
1. Delete your Kindle App
2. In the terminal go to
username/Library/Containers
3. Remove
com.amazon.kindle
4. Reinstall the Mac Kindle app from amazon.com not from the app store.
Be aware: As com.amazon.kindle contains your local Kindle library and documents everything is gone after deleting it.