Firefox/Zen on Linux · 60 Hz callbacks

Firefox is limiting Newgine to about 60 FPS

Your display may support a higher rate, but this browser is currently giving the game only about 60 display callbacks per second.

Preferred fix

Your monitor's current OS refresh rate Hz

1. Open about:config in the address bar.
2. Search for layout.frame_rate.
3. Set its Number value to your monitor's refresh rate, then fully restart Firefox/Zen.

Quick workaround: Switch to another tab, then return. Newgine will recheck automatically.

This is a Linux Firefox/Zen browser scheduling issue, not a monitor failure. A website cannot change about:config for you. Chrome is recommended for the game until Firefox/Zen catches up. If your display is actually configured for 60 Hz, you can continue normally.

Continue at 60 Hz