Bug: Intermittent browser/components/newtab/test/browser/browser_aboutwelcome_upgrade_multistage_mr.js | single tracking bug
Status: REOPENED
Priority: P5
Created: 2022-12-09 01:18:32+00:00
Resolved: 2025-02-24 06:35:05+00:00

**Filed by:** nfay [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=399084974&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/ek996XE2QbqQInmgZinuLQ/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2022-12-08T23:32:19.730Z] 23:32:19     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 105fb0000 == 0 [pid = 1768] [id = 0] [url = chrome://browser/content/hiddenWindowMac.xhtml]
[task 2022-12-08T23:32:19.782Z] 23:32:19     INFO - GECKO(1768) | [RDD 1833, Main Thread] WARNING: IPC message 'PRDD::Msg_FOGData' discarded: actor cannot send: file /builds/worker/checkouts/gecko/ipc/glue/ProtocolUtils.cpp:504
[task 2022-12-08T23:32:19.782Z] 23:32:19     INFO - GECKO(1768) | [RDD 1833, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:824
[task 2022-12-08T23:32:19.782Z] 23:32:19     INFO - GECKO(1768) | [Parent 1768, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/checkouts/gecko/widget/cocoa/nsAppShell.mm:824
[task 2022-12-08T23:32:19.783Z] 23:32:19     INFO - GECKO(1768) | [RDD 1833, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4659
[task 2022-12-08T23:32:19.804Z] 23:32:19     INFO - GECKO(1768) | [Parent 1768, Compositor] WARNING: IPC Connection Error: [Parent][PImageBridgeParent] RunMessage(msgname=PImageBridge::Msg_WillClose) Channel closing: too late to send/recv, messages will be lost: file /builds/worker/checkouts/gecko/ipc/glue/MessageChannel.cpp:1883
[task 2022-12-08T23:32:19.836Z] 23:32:19     INFO - GECKO(1768) | [Parent 1768, RemoteLzyStream,SHDRCV] WARNING: RemoteLazyInputStreamChild disconnected unexpectedly (1 streams remaining)! 13b5fed20 {921bb184-dc99-456b-bb17-06ef0a231219}: file /builds/worker/checkouts/gecko/dom/file/ipc/RemoteLazyInputStreamChild.cpp:51
[task 2022-12-08T23:32:20.540Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (13bfe1a40) [pid = 1768] [serial = 97] [outer = 0] [url = about:firefoxview]
[task 2022-12-08T23:32:20.543Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (12e832400) [pid = 1768] [serial = 4] [outer = 0] [url = about:blank]
[task 2022-12-08T23:32:20.543Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (12c665fb0) [pid = 1768] [serial = 3] [outer = 0] [url = chrome://browser/content/browser.xhtml]
[task 2022-12-08T23:32:20.544Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (13bfe1300) [pid = 1768] [serial = 10] [outer = 0] [url = chrome://mochikit/content/browser-harness.xhtml]
[task 2022-12-08T23:32:20.544Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (132fdf000) [pid = 1768] [serial = 11] [outer = 0] [url = about:blank]
[task 2022-12-08T23:32:20.545Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (12dea8400) [pid = 1768] [serial = 229] [outer = 0] [url = about:blank]
[task 2022-12-08T23:32:20.545Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (131315a40) [pid = 1768] [serial = 5] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2022-12-08T23:32:20.546Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (130e15400) [pid = 1768] [serial = 7] [outer = 0] [url = chrome://extensions/content/dummy.xhtml]
[task 2022-12-08T23:32:20.546Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (131d0c2b0) [pid = 1768] [serial = 8] [outer = 0] [url = about:blank]
[task 2022-12-08T23:32:20.547Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (12e831800) [pid = 1768] [serial = 2] [outer = 0] [url = about:blank]
[task 2022-12-08T23:32:20.547Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (12c665300) [pid = 1768] [serial = 1] [outer = 0] [url = chrome://browser/content/hiddenWindowMac.xhtml]
[task 2022-12-08T23:32:20.554Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (13bc03800) [pid = 1768] [serial = 99] [outer = 0] [url = about:firefoxview]
[task 2022-12-08T23:32:20.579Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768, Main Thread] WARNING: Extra shutdown CC: 'i < NORMAL_SHUTDOWN_COLLECTIONS', file /builds/worker/checkouts/gecko/xpcom/base/nsCycleCollector.cpp:3387
[task 2022-12-08T23:32:20.598Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768, Main Thread] WARNING: NS_ENSURE_TRUE(InitStaticMembers()) failed: file /builds/worker/workspace/obj-build/dist/include/mozilla/Preferences.h:129
[task 2022-12-08T23:32:20.621Z] 23:32:20     INFO - GECKO(1768) | [Parent 1768, Main Thread] WARNING: NS_ENSURE_TRUE(Preferences::InitStaticMembers()) failed: file /builds/worker/checkouts/gecko/modules/libpref/Preferences.cpp:4659
[task 2022-12-08T23:32:20.641Z] 23:32:20     INFO - TEST-INFO | Main app process: exit 0
[task 2022-12-08T23:32:20.641Z] 23:32:20     INFO - TEST-INFO | Confirming we saw 421 DOCSHELL created and 421 destroyed log strings.
[task 2022-12-08T23:32:20.642Z] 23:32:20     INFO - TEST-INFO | Confirming we saw 1157 DOMWINDOW created and 1157 destroyed log strings.
[task 2022-12-08T23:32:20.642Z] 23:32:20    ERROR - TEST-UNEXPECTED-FAIL | browser/components/newtab/test/browser/browser_aboutwelcome_upgrade_multistage_mr.js | leaked 2 window(s) until shutdown [url = about:firefoxview]
[task 2022-12-08T23:32:20.642Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_upgrade_multistage_mr.js | windows(s) leaked: [pid = 1768] [serial = 97], [pid = 1768] [serial = 99]
[task 2022-12-08T23:32:20.643Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_upgrade_multistage_mr.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.643Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_upgrade_multistage_mr.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.643Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_configurable_ui.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.644Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_configurable_ui.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.644Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_focus.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.644Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_focus.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.645Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_mobile_downloads.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.645Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_mobile_downloads.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.645Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_default.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.646Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_default.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.646Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_experimentAPI.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.646Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_experimentAPI.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.646Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_languageSwitcher.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.647Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_languageSwitcher.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.647Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.647Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_mr.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.648Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_primary.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.648Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_primary.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.648Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_video.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.649Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_multistage_video.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.649Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_observer.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.649Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_aboutwelcome_observer.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.650Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_as_load_location.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.650Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_as_load_location.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.650Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_as_render.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.651Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_as_render.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.651Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_cfr.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.651Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_cfr.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.652Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_infobar.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.652Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_infobar.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.653Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_snippets.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.653Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_snippets.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.654Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_snippets_dismiss.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.654Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_snippets_dismiss.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.654Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_spotlight.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.655Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_spotlight.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.655Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_targeting.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.656Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_targeting.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.656Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_toolbarbadge.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.656Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_asrouter_toolbarbadge.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.657Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_context_menu_item.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.657Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_context_menu_item.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.658Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_customize_menu_content.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.658Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_customize_menu_content.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.659Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_customize_menu_render.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.659Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_customize_menu_render.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.659Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_card.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.660Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_card.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.660Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_render.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.661Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_render.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.661Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_styles.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.662Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_discovery_styles.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.662Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_feature_callout_in_chrome.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.663Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_feature_callout_in_chrome.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.663Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_getScreenshots.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.663Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_getScreenshots.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.664Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_highlights_section.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.664Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_highlights_section.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.664Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_multistage_spotlight.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.665Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_multistage_spotlight.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.665Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_multistage_spotlight_telemetry.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.665Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_multistage_spotlight_telemetry.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.666Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_header.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.666Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_header.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.666Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_last_LinkMenu.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.667Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_last_LinkMenu.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.667Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_overrides.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.667Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_overrides.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.667Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_ping.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.668Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_ping.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.668Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_trigger.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.668Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_newtab_trigger.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.669Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_open_tab_focus.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.669Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_open_tab_focus.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.669Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_annotation.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.670Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_annotation.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.670Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_contextMenu_options.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.670Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_contextMenu_options.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.671Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_section.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.671Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_topsites_section.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.671Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_trigger_listeners.js | This test created 0 hidden window(s)
[task 2022-12-08T23:32:20.671Z] 23:32:20     INFO - TEST-INFO | browser/components/newtab/test/browser/browser_trigger_listeners.js | This test created 1 hidden docshell(s)
[task 2022-12-08T23:32:20.672Z] 23:32:20     INFO - runtests.py | Application ran for: 0:04:52.681551
```