Firefox 158 enables JPEG XL by default and makes scrolling more precise

Mozilla released Firefox 158.0 with built-in JPEG XL decoding on by default, pixel-accurate scrolling no longer snapped to whole pixels, and more accessible PDF export. Smart Window gained AI form suggestions, and built-in translation added Albanian, Belarusian and Filipino.

• JPEG XL is on by default with no toggle required
• Scroll positions no longer snap to full on-screen pixels
• Smart Window suggests form entries from open tabs and autofill data
• Translation coverage adds Albanian, Belarusian and Filipino