Is MyEmailViewer - Eml viewer and msg viewer safe?

View .eml and .msg email files in the browser without needing Outlook or separate software.

This extension opens local .eml and .msg files in a browser-based reader with drag-and-drop or extension-icon access. It supports viewing email content, headers, metadata, attachments, embedded images on demand, printing, saving as HTML, and converting .msg files to .eml. The description says email processing happens locally on the device and that preferences are stored for display, behavior, and UI settings.