Affecting File.lastModifiedDate has been removed

Published: | Categories: DOM

Description

The non-standard File.prototype.lastModifiedDate property, deprecated since Firefox 49, has been removed with Firefox 61. According to Mozilla’s Telemetry, it’s currently used in 0.01% of the pages. Use the standard lastModified property instead.

Update: Microsoft OneDrive is not showing correct file modification dates due to this change.

References