diff --git a/browser/base/content/test/sanitize/browser.ini b/browser/base/content/test/sanitize/browser.ini
index 72557f4b0d9a..9dfd9e5dc57f 100644
--- a/browser/base/content/test/sanitize/browser.ini
+++ b/browser/base/content/test/sanitize/browser.ini
@@ -5,12 +5,19 @@ support-files=
   dummy_page.html
 
 [browser_purgehistory_clears_sh.js]
+skip-if = fission #Bug 1578037
 [browser_sanitize-formhistory.js]
+skip-if = fission #Bug 1578037
 [browser_sanitize-offlineData.js]
+skip-if = fission #Bug 1578037
 [browser_sanitize-passwordDisabledHosts.js]
+skip-if = fission #Bug 1578037
 [browser_sanitize-sitepermissions.js]
+skip-if = fission #Bug 1578037
 [browser_sanitize-timespans.js]
+skip-if = fission #Bug 1578037
 [browser_sanitizeDialog.js]
+skip-if = fission #Bug 1578037
 [browser_cookiePermission.js]
 [browser_cookiePermission_aboutURL.js]
 [browser_cookiePermission_containers.js]
diff --git a/devtools/client/storage/test/browser.ini b/devtools/client/storage/test/browser.ini
index 9b9d64954dd2..7d744009bd27 100644
--- a/devtools/client/storage/test/browser.ini
+++ b/devtools/client/storage/test/browser.ini
@@ -45,7 +45,7 @@ fail-if = fission
 [browser_storage_cookies_delete_all.js]
 fail-if = fission
 [browser_storage_cookies_domain.js]
-fail-if = fission && !debug
+fail-if = fission
 [browser_storage_cookies_domain_port.js]
 [browser_storage_cookies_edit.js]
 [browser_storage_cookies_edit_keyboard.js]
@@ -65,7 +65,7 @@ tags = usercontextid
 [browser_storage_dom_cache_disabled.js]
 fail-if = fission
 [browser_storage_dynamic_updates_cookies.js]
-fail-if = fission && !debug
+fail-if = fission
 [browser_storage_dynamic_updates_localStorage.js]
 [browser_storage_dynamic_updates_sessionStorage.js]
 [browser_storage_empty_objectstores.js]
diff --git a/netwerk/cookie/test/browser/browser.ini b/netwerk/cookie/test/browser/browser.ini
index 1ad038f63b9c..89d73f0e753e 100644
--- a/netwerk/cookie/test/browser/browser.ini
+++ b/netwerk/cookie/test/browser/browser.ini
@@ -13,5 +13,6 @@ support-files = server.sjs
 [browser_storage.js]
 skip-if = fission # Crashes on debug: @ mozilla::dom::ContentProcessManager::GetContentProcessById(mozilla::dom::IdType<mozilla::dom::ContentParent> const&)
 [browser_serviceWorker.js]
+skip-if = fission #Bug 1578037
 [browser_sharedWorker.js]
 skip-if = fission
diff --git a/testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointermove_on_chorded_mouse_button_when_locked.html.ini b/testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointermove_on_chorded_mouse_button_when_locked.html.ini
index 748d32291404..7a1c64f4e695 100644
--- a/testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointermove_on_chorded_mouse_button_when_locked.html.ini
+++ b/testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointermove_on_chorded_mouse_button_when_locked.html.ini
@@ -1,4 +1,5 @@
 [pointerevent_pointermove_on_chorded_mouse_button_when_locked.html]
   [pointer locked pointermove events received for button state changes]
     expected:
-      if (os == "linux"): ["PASS", "FAIL"]
+      if (os == "linux"): [PASS, FAIL]
+      if ccov and (os == "win"): [PASS, FAIL]
diff --git a/toolkit/components/cleardata/tests/browser/browser.ini b/toolkit/components/cleardata/tests/browser/browser.ini
index 01dabe46faeb..a3b927c7df08 100644
--- a/toolkit/components/cleardata/tests/browser/browser.ini
+++ b/toolkit/components/cleardata/tests/browser/browser.ini
@@ -1,2 +1,3 @@
 [browser_serviceworkers.js]
 support-files = worker.js
+skip-if = fission #Bug 1578037
diff --git a/toolkit/crashreporter/test/browser/browser.ini b/toolkit/crashreporter/test/browser/browser.ini
index 2c9d5166bbe6..5ba4760771c6 100644
--- a/toolkit/crashreporter/test/browser/browser.ini
+++ b/toolkit/crashreporter/test/browser/browser.ini
@@ -6,4 +6,6 @@ support-files =
 [browser_aboutCrashesIncomplete.js]
 [browser_aboutCrashesResubmit.js]
 [browser_bug471404.js]
+skip-if = fission #Bug 1578037
 [browser_clearReports.js]
+skip-if = fission #Bug 1578037