Firefox is unusable for developers with poor eyesight that use OS-level accessibility features such as high contrast on recent versions of Windows.
There is an open bug but no love: [ https://bugzilla.mozilla.org/show_bug.cgi?id=790706 ]. Firefox forces high-contrast colors, completely destroying HTML rendering, with no option to disable this behavior.
Using a high contrast theme in Windows doesn't mean i don't want to see web pages as their developer intended.
Chrome gets it right, why can't Firefox?