Black Friday online sales hit a new record this year as pandemic-wary Americans filled virtual carts instead of real ones.

Consumers spent an estimated $9 billion on U.S. retail websites on Black Friday, according to Adobe Analytics, which tracks online shopping. That was a 22% increase over the previous record of $7.4 billion set in 2019.

Meanwhile, traffic to physical stores plummeted as retailers tried to prevent crowds by cutting their hours and limiting doorbuster deals. U.S. store visits dropped by 52% on Black Friday, according to Sensormatic Solutions, a retail tracker. Traffic was slo...