Screen Saturation when Firefox is full screen.
 

Every time that I enter full screen, or make a tab of Firefox a little too large, my entire screen saturates at a high intensity. It often even makes text almost impossible, and seems to merge it together. Any help would be appreciated. Thank You.

Try including more details like the actual distro and hardware you're running on. If it's a laptop, if it's a monitor, if it's both.

Is it just Firefox? What troubleshooting have you done?

So far you're provided just about zero useful information.