--- a/dom/canvas/test/webgl-conf/generated-mochitest.ini
+++ b/dom/canvas/test/webgl-conf/generated-mochitest.ini
@@ -4649,17 +4649,17 @@ skip-if = (os == 'win') || (os == 'andro
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__draw-static-webgl-to-multiple-canvas-test.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__draw-webgl-to-canvas-test.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__drawingbuffer-hd-dpi-test.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__drawingbuffer-static-canvas-test.html]
-skip-if = (os == 'win' && os_version == '6.2') || (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
+skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__drawingbuffer-test.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__framebuffer-bindings-affected-by-to-data-url.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__framebuffer-bindings-unaffected-on-resize.html]
 skip-if = (os == 'android' || os == 'linux' || (os == 'win' && os_version == '5.1'))
 [generated/test_2_conformance__canvas__rapid-resizing.html]
 fail-if = (os == 'win' && os_version == '5.1')

--- a/dom/canvas/test/webgl-conf/mochitest-errata.ini
+++ b/dom/canvas/test/webgl-conf/mochitest-errata.ini
@@ -653,19 +653,16 @@ skip-if = (os == 'win' && os_version == 
 # Failure on win7 but got passed on win7 vm
 skip-if = (os == 'win' && os_version == '6.1')
 [generated/test_2_conformance__glsl__constructors__glsl-construct-vec4.html]
 # Failure on win7 but got passed on win7 vm
 skip-if = (os == 'win' && os_version == '6.1')
 [generated/test_2_conformance__textures__misc__tex-image-and-sub-image-2d-with-array-buffer-view.html]
 # Failure on win7 but got passed on win7 vm
 skip-if = (os == 'win' && os_version == '6.1')
-[generated/test_2_conformance__canvas__drawingbuffer-static-canvas-test.html]
-# Framebuffer size can't be GL_MAX_RENDERBUFFER_SIZE
-skip-if = (os == 'win' && os_version == '6.2')
 [generated/test_2_conformance2__transform_feedback__transform_feedback.html]
 fail-if = (os == 'win' && (os_version == '6.1' || os_version == '6.2' || os_version == '10.0'))
 
 ####################
 # failure on Windows
 [generated/test_2_conformance__canvas__rapid-resizing.html]
 fail-if = (os == 'win' && os_version == '5.1')
 [generated/test_conformance__glsl__bugs__floor-div-cos-should-not-truncate.html]