User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0 Build ID: 20150224030228 Steps to reproduce: https://www.khronos.org/registry/webgl/sdk/tests/conformance/textures/tex-image-and-sub-image-2d-with-video-rgba4444.html?webglVersion=1 Verify texImage2D and texSubImage2D code paths taking video elements (RGBA/UNSIGNED_SHORT_4_4_4_4) Actual results: conformance/textures/tex-image-and-sub-image-2d-with-video-rgba4444.html (97 of 98 passed) failed: getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors OPENGL: conformance/textures/tex-image-and-sub-image-2d-with-video-rgba4444.html (49 of 98 passed) failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 0,255,0 was 0,0,0 failed: at (4, 24) expected: 255,0,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: at (4, 4) expected: 255,0,0 was 0,0,0 failed: at (4, 24) expected: 0,255,0 was 0,0,0 failed: getError expected: NO_ERROR. Was INVALID_VALUE : should be no errors Expected results: Chrome passes all the tests. Firefox fails the test with both the ANGLE and OpenGL backends.

Confirmed this to fail on the following hardware: - SPARK, GIADA, MACBOOK_AIR_OSX, MACBOOK_AIR_WIN, MACBOOK_PRO_OSX, MACBOOK_PRO_WIN, MACMINI, MACPRO, NEXUS-4, NEXUS-5, NEXUS-10, SURFACE, WINDBOX, HASWELL, HPOMEN (All tested configurations, so looks like hardware independent) See https://bugzilla.mozilla.org/show_bug.cgi?id=1178601 for hardware configuration details of these systems.

I tried the test on Win10 and MacOS and all passed.