Unlike the other brightness controls available right now, this addon allows brightness greater than 100%, which is helpful for some gaming sites and sites that disguise information by dimming the page. Contrast, saturation, and warmth are also helpful. It would be nice if a gamma adjustment were also available.
After a few hours of use, some problems have appeared. The right-click menu fails to show up, disabling the addon may cause enabling and vice-versa, multiple instances show up on a page and can fill the whole page. Removing the addon does not necessarily end its effects.
Firefox 134, February 5 2025