Cashback browser extensions work in the background, popping up to activate cashback when you visit a participating store, with no need to remember a portal.

Rakuten's extension focuses on cashback rates, Honey on coupon codes plus rewards, and Capital One Shopping on price comparison and automatic codes.

Enable the activation prompt, complete purchases in the same browser session, and keep order confirmations until cashback posts.

Typical online shoppers earn a few dollars to tens of dollars a month, but extensions earn nothing at non-partner stores or for in-store purchases.

Stack the extension with a cashback card, cash out promptly, and read the privacy policy since extensions track shopping-site browsing to function.