The following web platform tests are failing only in firefox as documented in https://foolip.github.io/ad-hoc-wpt-results-analysis/firefox-lone-failures.html /css/filter-effects/filter-external-001-test.html /css/filter-effects/filtered-html-is-not-container.html /css/filter-effects/parsing/filter-computed.html /css/filter-effects/parsing/filter-parsing-valid.html /css/filter-effects/svgfeblendelement-mode-001.html

(In reply to David Burns :automatedtester from comment #0) > /css/filter-effects/filter-external-001-test.html This is only off-by-one in the color value. The filter produces rgb(0, 119, 1) in Firefox, and the reference uses rgb(0, 120, 1). All the other test failures are true failures: > /css/filter-effects/filtered-html-is-not-container.html This is bug 1423746. > /css/filter-effects/parsing/filter-computed.html > /css/filter-effects/parsing/filter-parsing-valid.html CSS filter functions blur(), brightness(), contrast(), grayscale(), hue-rotate(), invert(), opacity(), saturate() and sepia() are treated as invalid when used without arguments. > /css/filter-effects/svgfeblendelement-mode-001.html 1. feBlendElement.setAttribute("mode", "not-a-valid-value") causes feBlendElement.mode.baseVal to change from 1 to 0 instead of staying at 1. 2. Setting feBlendElement.mode.baseVal to 1 doesn't change its mode attribute to "normal" (?)