diff --git a/browser/base/content/test/plugins/browser.ini b/browser/base/content/test/plugins/browser.ini
index d67a14774b21..d46bb6ae7f9c 100644
--- a/browser/base/content/test/plugins/browser.ini
+++ b/browser/base/content/test/plugins/browser.ini
@@ -56,7 +56,6 @@ skip-if = !crashreporter
 [browser_CTP_iframe.js]
 [browser_CTP_multi_allow.js]
 [browser_CTP_nonplugins.js]
-skip-if = e10s # Bug 1315042
 [browser_CTP_notificationBar.js]
 [browser_CTP_outsideScrollArea.js]
 [browser_CTP_remove_navigate.js]
diff --git a/browser/base/content/test/webrtc/browser.ini b/browser/base/content/test/webrtc/browser.ini
index 9e4898e195b2..0ea0dcacae63 100644
--- a/browser/base/content/test/webrtc/browser.ini
+++ b/browser/base/content/test/webrtc/browser.ini
@@ -12,7 +12,6 @@ skip-if = (os == "linux" && debug) # linux: bug 976544
 [browser_devices_get_user_media_screen.js]
 skip-if = (e10s && debug) || (os == "linux" && !debug) # bug 1320754 for e10s debug, and bug 1320994 for linux opt
 [browser_devices_get_user_media_tear_off_tab.js]
-skip-if = e10s # Bug 1315042
 [browser_devices_get_user_media_unprompted_access.js]
 [browser_devices_get_user_media_unprompted_access_in_frame.js]
 [browser_devices_get_user_media_unprompted_access_tear_off_tab.js]
diff --git a/dom/cache/test/mochitest/browser.ini b/dom/cache/test/mochitest/browser.ini
index 3c55c22f52df..90a7a53a3a36 100644
--- a/dom/cache/test/mochitest/browser.ini
+++ b/dom/cache/test/mochitest/browser.ini
@@ -1,2 +1 @@
 [browser_cache_pb_window.js]
-skip-if = e10s # Bug 1315042
diff --git a/testing/firefox-ui/tests/functional/security/manifest.ini b/testing/firefox-ui/tests/functional/security/manifest.ini
index a879eae6de38..6a210cfb7315 100644
--- a/testing/firefox-ui/tests/functional/security/manifest.ini
+++ b/testing/firefox-ui/tests/functional/security/manifest.ini
@@ -11,7 +11,6 @@ tags = local
 tags = local
 [test_safe_browsing_initial_download.py]
 [test_safe_browsing_notification.py]
-skip-if = e10s # Bug 1315042
 [test_safe_browsing_warning_pages.py]
 [test_security_notification.py]
 [test_ssl_disabled_error_page.py]
diff --git a/toolkit/mozapps/extensions/test/browser/browser-common.ini b/toolkit/mozapps/extensions/test/browser/browser-common.ini
index dc9e88e5715b..eda266e2f30e 100644
--- a/toolkit/mozapps/extensions/test/browser/browser-common.ini
+++ b/toolkit/mozapps/extensions/test/browser/browser-common.ini
@@ -65,4 +65,3 @@ skip-if = buildapp == 'mulet'
 skip-if = buildapp == 'mulet'
 [browser_webext_options.js]
 tags = webextensions
-skip-if = e10s # Bug 1315042