--- a/dom/canvas/test/webgl-conf/generated-mochitest.ini
+++ b/dom/canvas/test/webgl-conf/generated-mochitest.ini
@@ -3035,17 +3035,16 @@ fail-if = (os == 'b2g')
 [generated/test_conformance__programs__invalid-UTF-16.html]
 [generated/test_conformance__programs__program-test.html]
 fail-if = (os == 'android' && android_version == '10')
 [generated/test_conformance__programs__use-program-crash-with-discard-in-fragment-shader.html]
 [generated/test_conformance__reading__read-pixels-pack-alignment.html]
 [generated/test_conformance__reading__read-pixels-test.html]
 skip-if = (os == 'android') || (os == 'linux')
 [generated/test_conformance__renderbuffers__feedback-loop.html]
-fail-if = 1
 [generated/test_conformance__renderbuffers__framebuffer-object-attachment.html]
 skip-if = (os == 'android')
 [generated/test_conformance__renderbuffers__framebuffer-state-restoration.html]
 [generated/test_conformance__renderbuffers__framebuffer-test.html]
 [generated/test_conformance__renderbuffers__renderbuffer-initialization.html]
 [generated/test_conformance__rendering__culling.html]
 [generated/test_conformance__rendering__draw-arrays-out-of-bounds.html]
 [generated/test_conformance__rendering__draw-elements-out-of-bounds.html]

--- a/dom/canvas/test/webgl-conf/mochitest-errata.ini
+++ b/dom/canvas/test/webgl-conf/mochitest-errata.ini
@@ -31,19 +31,16 @@ subsuite = webgl
 skip-if = os == 'b2g' || ((os == 'linux') && (buildapp == 'mulet'))
 
 [generated/test_..__always-fail.html]
 fail-if = 1
 [generated/test_conformance__context__context-lost.html]
 fail-if = 1
 [generated/test_conformance__glsl__misc__shaders-with-invariance.html]
 fail-if = 1
-[generated/test_conformance__glsl__misc__shaders-with-name-conflicts.html]
-[generated/test_conformance__renderbuffers__feedback-loop.html]
-fail-if = 1
 
 ####################
 # Tests requesting non-local network connections.
 
 [generated/test_conformance__more__functions__readPixelsBadArgs.html]
 # (TODO) FATAL ERROR: Non-local network connections are disabled and a connection attempt to www.opengl.org (45.55.206.190) was made.
 skip-if = 1