diff --git a/layout/generic/test/mochitest.ini b/layout/generic/test/mochitest.ini
index 4488395d9fec..69d6444bc553 100644
--- a/layout/generic/test/mochitest.ini
+++ b/layout/generic/test/mochitest.ini
@@ -1,7 +1,6 @@
 [DEFAULT]
 prefs =
   gfx.font_loader.delay=0
-skip-if = toolkit == 'android' #CRASH_DUMP, RANDOM, ONLY IN CHUNK 10
 support-files =
   ../../reftests/backgrounds/blue-32x32.png
   ../../reftests/backgrounds/fuchsia-32x32.png
@@ -25,7 +24,6 @@ support-files = bug344830_testembed.svg
 [test_bug348681.html]
 [test_bug382429.html]
 [test_bug384527.html]
-skip-if = win10_2004 && bits == 32 # Bug 1727925
 [test_bug385751.html]
 [test_bug389630.html]
 [test_bug391747.html]
@@ -33,10 +31,6 @@ skip-if = win10_2004 && bits == 32 # Bug 1727925
 [test_bug392923.html]
 [test_bug394173.html]
 [test_bug394239.html]
-skip-if =
-  (xorigin && debug)
-  http3
-  http2
 [test_bug402380.html]
 [test_bug404872.html]
 [test_bug405178.html]
@@ -50,7 +44,6 @@ support-files = bug421839-2-page.html
 [test_bug438840.html]
 [test_bug448860.html]
 [test_bug448987.html]
-skip-if = true # Bug 932296
 support-files = file_bug448987.html file_bug448987_ref.html file_bug448987_notref.html
 [test_bug449653.html]
 support-files = file_bug449653_1.html file_bug449653_1_ref.html
@@ -58,15 +51,15 @@ support-files = file_bug449653_1.html file_bug449653_1_ref.html
 [test_bug468167.html]
 [test_bug470212.html]
 [test_bug488417.html]
-skip-if = true # Bug 489560
 [test_bug496275.html]
 [test_bug503813.html]
 [test_bug507902.html]
 skip-if = true # Bug 510001
-[test_bug579767.html]
-support-files = file_bug579767_1.html file_bug579767_2.html
 [test_bug522632.html]
 [test_bug524925.html]
+[test_bug579767.html]
+support-files = file_bug579767_1.html file_bug579767_2.html
+skip-if = toolkit == 'android'
 [test_bug589621.html]
 [test_bug589623.html]
 [test_bug597333.html]
@@ -104,6 +97,9 @@ skip-if =
 [test_bug1623764.html]
 [test_bug1642588.html]
 [test_bug1644511.html]
+[test_bug1655135.html]
+[test_bug1756831.html]
+[test_bug1803209.html]
 [test_crash_on_mouse_move.html]
 [test_dynamic_reflow_root_disallowal.html]
 [test_flex_interrupt.html]
@@ -114,14 +110,13 @@ support-files =
 skip-if =
   http3
   http2
+[test_grid_track_sizing_algo_001.html]
+[test_grid_track_sizing_algo_002.html]
 [test_image_selection.html]
 [test_image_selection_2.html]
 [test_image_selection_3.html]
 [test_image_selection_in_contenteditable.html]
 [test_intrinsic_size_on_loading.html]
-skip-if =
-  http3
-  http2
 [test_key_enter_open_second_summary.html]
 [test_key_enter_prevent_default.html]
 [test_key_enter_single_summary.html]
@@ -130,13 +125,29 @@ skip-if =
 [test_movement_by_words.html]
 # Disable the caret movement by word test on Linux because the shortcut keys
 # are defined in system level.  So, it depends on the environment.
-# Disable on Windows for too many intermittent failures (bug 916143).
-skip-if = (toolkit == "gtk") || (os == "win")
+skip-if = (toolkit == "gtk")
 [test_overlay_scrollbar_position.html]
 [test_overflow_event.html]
 [test_page_scroll_with_fixed_pos.html]
 support-files = page_scroll_with_fixed_pos_window.html
+[test_reframe_for_lazy_load_image.html]
+support-files =
+    file_reframe_for_lazy_load_image.html
+[test_scroll_animation_restore.html]
 [test_scroll_behavior.html]
+skip-if = toolkit == 'android'
+[test_scroll_on_display_contents.html]
+support-files = !/gfx/layers/apz/test/mochitest/apz_test_native_event_utils.js
+skip-if = toolkit == 'android'
+[test_scroll_position_iframe.html]
+[test_scroll_position_restore.html]
+support-files = file_scroll_position_restore.html
+[test_scroll_position_restore_after_stop.html]
+skip-if = toolkit == 'android'
+[test_scroll_position_restore_no_bfcache.html]
+support-files =
+    file_scroll_position_restore_no_bfcache.html
+    slow-stylesheet.sjs
 [test_scrollframe_abspos_interrupt.html]
 [test_selection_changes_with_middle_mouse_button.html]
 [test_selection_doubleclick.html]
@@ -148,24 +159,3 @@ support-files = page_scroll_with_fixed_pos_window.html
 [test_selection_multiclick_drag.html]
 [test_taintedfilters.html]
 support-files = file_taintedfilters_feDisplacementMap-tainted-1.svg file_taintedfilters_feDisplacementMap-tainted-2.svg file_taintedfilters_feDisplacementMap-tainted-3.svg file_taintedfilters_feDisplacementMap-tainted-ref.svg file_taintedfilters_feDisplacementMap-untainted-ref.svg file_taintedfilters_feDisplacementMap-untainted-1.svg file_taintedfilters_feDisplacementMap-untainted-2.svg file_taintedfilters_red-flood-for-feImage-cors.svg file_taintedfilters_red-flood-for-feImage-cors.svg^headers^ file_taintedfilters_red-flood-for-feImage.svg
-[test_scroll_position_restore.html]
-support-files = file_scroll_position_restore.html
-[test_scroll_position_restore_no_bfcache.html]
-support-files =
-    file_scroll_position_restore_no_bfcache.html
-    slow-stylesheet.sjs
-[test_scroll_position_restore_after_stop.html]
-[test_scroll_animation_restore.html]
-[test_scroll_position_iframe.html]
-[test_grid_track_sizing_algo_001.html]
-skip-if = debug == true || tsan # the test is slow. tsan: bug 1612707
-[test_grid_track_sizing_algo_002.html]
-skip-if = debug == true || tsan # the test is slow. tsan: bug 1612707
-[test_reframe_for_lazy_load_image.html]
-support-files =
-    file_reframe_for_lazy_load_image.html
-[test_bug1655135.html]
-[test_bug1756831.html]
-[test_scroll_on_display_contents.html]
-support-files = !/gfx/layers/apz/test/mochitest/apz_test_native_event_utils.js
-[test_bug1803209.html]