Passwordless Chrome Extension
If you sell on Poshmark, Mercari, or Depop and have access to a computer, it's worth familiarizing yourself with Nifty's Passwordless Chrome Extension. It’s quick, easy, and guaranteed to work.
How to set it up
In Google Chrome on a computer, open our Chrome extension.
Click Add to Chrome, then confirm when prompted.
From the same browser, log into your marketplace account (Poshmark, Mercari, or Depop).
Go back to your Nifty Account — you'll see a Connect button instead of a password field.
How it works
The extension uses your existing session with poshmark.com, mercari.com, or depop.com and shares it with Nifty so we can connect without you typing your marketplace password into Nifty.
How it affects your service
It doesn't! The extension is only used for the initial connection — it doesn't change how Nifty works. Nifty still runs entirely in the cloud, and you don't need to keep your computer on after connecting.
Troubleshooting
Not seeing the Connect button? Make sure you're using Google Chrome on a computer and that the extension is installed and enabled — other browsers aren't supported.
Clicked Connect but got a login page? This usually means you're not logged into the marketplace on your current browser. Log in and confirm the connection by visiting the marketplace directly (for example, poshmark.com), then try again.
Connection won't establish or disconnects immediately? Your session may be stale. Sign out of the marketplace, sign back in, then use the extension again.
Reconnecting
When you're automatically logged out of a marketplace (a normal security feature), connections made via the extension will expire too. To reconnect, make sure the extension is still installed, log back into the marketplace, and click Connect on Nifty.
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