--- a/layout/style/test/mochitest.ini
+++ b/layout/style/test/mochitest.ini
@@ -39,17 +39,17 @@ support-files =
 support-files = additional_sheets_helper.html
 [test_additional_sheets.html]
 support-files = additional_sheets_helper.html
 [test_align_justify_computed_values.html]
 [test_align_shorthand_serialization.html]
 skip-if = stylo # bug 1339656
 [test_all_shorthand.html]
 [test_animations.html]
-skip-if = (toolkit == 'android' || stylo) # bug 1339318 for stylo
+skip-if = (toolkit == 'android')
 [test_animations_async_tests.html]
 support-files = ../../reftests/fonts/Ahem.ttf file_animations_async_tests.html
 [test_animations_dynamic_changes.html]
 [test_animations_effect_timing_duration.html]
 support-files = file_animations_effect_timing_duration.html
 [test_animations_effect_timing_enddelay.html]
 support-files = file_animations_effect_timing_enddelay.html
 [test_animations_effect_timing_iterations.html]
@@ -63,17 +63,16 @@ support-files = file_animations_iteratio
 [test_animations_pausing.html]
 support-files = file_animations_pausing.html
 [test_animations_playbackrate.html]
 support-files = file_animations_playbackrate.html
 [test_animations_styles_on_event.html]
 skip-if = stylo # timeout bug 1328505
 support-files = file_animations_styles_on_event.html
 [test_animations_with_disabled_properties.html]
-skip-if = stylo # timeout bug 1328503
 support-files = file_animations_with_disabled_properties.html
 [test_any_dynamic.html]
 [test_asyncopen2.html]
 [test_at_rule_parse_serialize.html]
 [test_attribute_selector_eof_behavior.html]
 [test_background_blend_mode.html]
 [test_box_size_keywords.html]
 [test_bug73586.html]

--- a/layout/style/test/stylo-failures.md
+++ b/layout/style/test/stylo-failures.md
@@ -32,33 +32,28 @@ Any line which doesn't follow the format
   * test_bug418986-2.html: matchMedia support [3]
   * test_bug453896_deck.html: <style media> support [8]
   * test_media_queries.html [1]
   * test_media_queries_dynamic.html [17]
   * test_media_queries_dynamic_xbl.html [2]
   * test_webkit_device_pixel_ratio.html: -webkit-device-pixel-ratio [3]
 * test_all_shorthand.html: all shorthand servo/servo#15055 [*]
 * Animation support:
-  * test_animations.html [277]
-  * test_animations_async_tests.html [2]
+  * test_animations.html [70]
   * test_animations_dynamic_changes.html [1]
   * test_bug716226.html [1]
-  * test_flexbox_flex_grow_and_shrink.html [8]
   * OMTA
     * test_animations_effect_timing_duration.html [1]
     * test_animations_effect_timing_enddelay.html [1]
     * test_animations_effect_timing_iterations.html [1]
     * test_animations_iterationstart.html [1]
     * test_animations_omta.html [1]
     * test_animations_omta_start.html [1]
     * test_animations_pausing.html [1]
     * test_animations_playbackrate.html [1]
-  * Events:
-    * test_animations_event_handler_attribute.html [10]
-    * test_animations_event_order.html [12]
   * SMIL Animation
     * test_restyles_in_smil_animation.html [2]
   * CSS Timing Functions: Frames timing functions
     * test_value_storage.html `frames` [30]
   * Property parsing and computation:
     * test_property_syntax_errors.html `animation` [404]
     * test_value_storage.html `animation` [280]
 * test_any_dynamic.html: -moz-any pseudo class [2]
@@ -99,16 +94,19 @@ Any line which doesn't follow the format
   * test_compute_data_with_start_struct.html `transition` [2]
   * test_transitions.html [63]
   * test_transitions_and_reframes.html [16]
   * test_transitions_and_restyles.html [3]
   * test_transitions_computed_value_combinations.html [145]
   * test_transitions_dynamic_changes.html [10]
   * test_transitions_step_functions.html [24]
   * test_value_storage.html `transition` [776]
+  * Events:
+    * test_animations_event_handler_attribute.html [10]
+    * test_animations_event_order.html [11]
 * test_bug798843_pref.html: conditional opentype svg support [7]
 * test_computed_style.html `gradient`: -moz-prefixed radient value [9]
 * url value in style attribute bug 1310886
   * test_computed_style.html `url` [12]
   * test_parse_url.html [4]
   * test_value_storage.html `url` [92]
   * test_shorthand_property_getters.html `background shorthand` [1]
   * ... `url` [3]
@@ -487,16 +485,18 @@ Any line which doesn't follow the format
 
 * Content glue not implemented
   * assertion in frame constructor bug 1324704
     * test_rule_insertion.html asserts [1]
   * assertion in computed style bug 1337635
     * test_value_cloning.html asserts [12]
     * test_value_computation.html asserts [24]
     * test_value_storage.html asserts [44]
+  * assertion for unsupported or non-animatable property bug 1343710
+    * test_animations.html asserts [24]
 * test_value_cloning.html asserts: negative radius bug 1337618 [4]
 
 ## Need Gecko change
 
 * Servo is correct but Gecko is wrong
   * unitless zero as angle bug 1234357
     * test_property_syntax_errors.html `linear-gradient(0,` [8]
     * ... `hue-rotate(0)` [6]