diff --git a/browser/base/content/test/newtab/browser.ini b/browser/base/content/test/newtab/browser.ini
index c9c2ebb0cab..71767fd43b2 100644
--- a/browser/base/content/test/newtab/browser.ini
+++ b/browser/base/content/test/newtab/browser.ini
@@ -13,7 +13,6 @@ skip-if = true # Bug 1119906
 [browser_newtab_bug725996.js]
 [browser_newtab_bug734043.js]
 [browser_newtab_bug735987.js]
-skip-if = (os == 'mac' && os_version == '10.10') # bug 1122478 - newtab drag-drop tests fail on OS X 10.10
 [browser_newtab_bug752841.js]
 [browser_newtab_bug765628.js]
 [browser_newtab_bug876313.js]
@@ -22,9 +21,7 @@ skip-if = (os == 'mac' && os_version == '10.10') # bug 1122478 - newtab drag-dro
 [browser_newtab_bug998387.js]
 [browser_newtab_disable.js]
 [browser_newtab_drag_drop.js]
-skip-if = os == "win" || (os == 'mac' && os_version == '10.10') # Bug 1152810 - can't do simulateDrop(0,0) on Windows; Bug 1122478 - newtab drag-drop tests fail on OS X 10.10
 [browser_newtab_drag_drop_ext.js]
-skip-if = (os == 'mac' && os_version == '10.10') # bug 1122478 - newtab drag-drop tests fail on OS X 10.10
 [browser_newtab_drop_preview.js]
 [browser_newtab_enhanced.js]
 [browser_newtab_focus.js]