Firefox 156 Speeds Up PDF Loading by 45% and Adds a macOS Autostart Option

Mozilla released Firefox 156.0, which loads the built-in PDF viewer up to 45% faster and reduces memory and CPU use when displaying large JPEGs. The update adds a macOS autostart option and includes significant security patches.

• PDF viewer in Firefox 156 starts up to 45% faster
• Lower memory and CPU use when displaying scaled JPEGs
• macOS autostart option added for the browser
• Security patches rated high importance