Story Saver

It's simpler than its name.
With Story Saver, you can download any story from Facebook, Instagram, and WhatsApp by a simple click.

Update 6th Feb: Fix date issue.

Story Saver allows you to save photos and videos stories.

All you have to do is installing this extension, an icon will appear at the top-left corner of the browser,
Click on that icon and whoosh the story will be downloaded, Oh and another thing the extension will rename the story to something readable

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Legal:
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WhatsApp is a trademark of WhatsApp Inc., registered in the U.S. and other countries.
Story Saver is an independent project and has no relationship to WhatsApp or WhatsApp Inc.WhatsApp Inc.