--- a/docshell/test/iframesandbox/mochitest.ini
+++ b/docshell/test/iframesandbox/mochitest.ini
@@ -10,11 +10,11 @@ support-files =
 [test_child_navigation_by_location.html]
 [test_other_auxiliary_navigation_by_location.html]
 skip-if = (buildapp == 'b2g' && toolkit != 'gonk') #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt
 [test_our_auxiliary_navigation_by_location.html]
 skip-if = (buildapp == 'b2g' && toolkit != 'gonk') #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt
 [test_parent_navigation_by_location.html]
 [test_sibling_navigation_by_location.html]
 [test_top_navigation_by_location_exotic.html]
-skip-if = (buildapp == 'b2g' && toolkit != 'gonk') #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt
+skip-if = (buildapp == 'b2g' && toolkit != 'gonk') || android_version == '18' #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt
 [test_top_navigation_by_location.html]
-skip-if = (buildapp == 'b2g' && toolkit != 'gonk') #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt
+skip-if = (buildapp == 'b2g' && toolkit != 'gonk') || android_version == '18' #bug 948948, NS_ERROR_FAILURE from nsWindowWatcher::GetPrompt

--- a/image/test/unit/xpcshell.ini
+++ b/image/test/unit/xpcshell.ini
@@ -36,12 +36,12 @@ support-files =
 [test_async_notification.js]
 # Bug 1156452: frequent crash on Android 4.3
 skip-if = android_version == "18"
 [test_async_notification_404.js]
 [test_async_notification_animated.js]
 [test_encoder_apng.js]
 [test_encoder_png.js]
 [test_imgtools.js]
-# Bug 676968: test fails consistently on Android
-fail-if = os == "android"
+# Bug 676968: test fails consistently on Android; crashes on 4.3 (bug 1156452)
+skip-if = os == "android"
 [test_moz_icon_uri.js]
 [test_private_channel.js]

--- a/mobile/android/base/tests/robocop.ini
+++ b/mobile/android/base/tests/robocop.ini
@@ -50,16 +50,18 @@ skip-if = true
 # [testHistory] # see bug 915350
 [testHomeBanner]
 [testImportFromAndroid]
 # disabled on 2.3 and 4.3 bug 979552
 skip-if = android_version == "10" || android_version == "18"
 [testInputUrlBar]
 [testJarReader]
 [testLinkContextMenu]
+# disabled on 4.3, bug 1083666
+skip-if = android_version == "18"
 # [testHomeListsProvider] # see bug 952310
 [testHomeProvider]
 [testLoad]
 [testMailToContextMenu]
 # [testMasterPassword] disabled for being finicky, see bug 1033013
 # disabled on 2.3; bug 979603
 # disabled on 4.0; bug 1006242
 # skip-if = android_version == "10" || android_version == "15"
@@ -144,18 +146,18 @@ skip-if = android_version == "10" || and
 [testAboutHomeVisibility]
 # disabled on Android 2.3; bug 946656
 skip-if = android_version == "10"
 [testAppMenuPathways]
 [testBackButtonInEditMode]
 [testEventDispatcher]
 [testGeckoRequest]
 [testInputConnection]
-# disabled on Android 2.3; bug 1025968
-skip-if = android_version == "10"
+# disabled on Android 2.3, 4.3; bug 1025968
+skip-if = android_version == "10" || android_version == "18"
 [testJavascriptBridge]
 [testNativeCrypto]
 [testReaderModeTitle]
 [testSessionHistory]
 # disabled on Android 4.3, bug 1144879
 skip-if = android_version == "18"
 
 # testSelectionHandler disabled on Android 2.3 by trailing skip-if, due to bug 980074