#9 crash for Thunderbird 128.4.0. Not a new crash for 128, and also occurs in 115 at same rate.
90% of uptime <30 seconds
80% of uptime <10 seconds

Perhaps all Windows?
All "Failed to get async shutdown service: NS_ERROR_FILE_NOT_FOUND" - there are no other crash signatures with that crash reason.

Firefox also has some crashes, but at a much lower rate, and they are not all Windows OS.

Previous bug fix - Bug 1471720 - XPCOM/XPConnect should do a "canary" load of a JS module (Was: fast startup crash in ServiceWorkerRegistrar::ProfileStarted)

Crash report: https://crash-stats.mozilla.org/report/index/08d99703-d316-4f35-84a0-12c7e0241103

MOZ_CRASH Reason:

Failed to get async shutdown service: NS_ERROR_FILE_NOT_FOUND

Top 10 frames:

0  xul.dll  MOZ_Crash(char const*, int, char const*)  mfbt/Assertions.h:317
0  xul.dll  mozilla::dom::ServiceWorkerRegistrar::GetShutdownPhase() const  dom/serviceworkers/ServiceWorkerRegistrar.cpp:1429
1  xul.dll  mozilla::dom::ServiceWorkerRegistrar::ProfileStarted()  dom/serviceworkers/ServiceWorkerRegistrar.cpp:1297
2  xul.dll  mozilla::dom::ServiceWorkerRegistrar::Observe(nsISupports*, char const*, char...  dom/serviceworkers/ServiceWorkerRegistrar.cpp:1459
3  xul.dll  nsObserverList::NotifyObservers(nsISupports*, char const*, char16_t const*)  xpcom/ds/nsObserverList.cpp:71
3  xul.dll  nsObserverService::NotifyObservers(nsISupports*, char const*, char16_t const*)  xpcom/ds/nsObserverService.cpp:289
4  xul.dll  nsXREDirProvider::DoStartup()  toolkit/xre/nsXREDirProvider.cpp:834
5  xul.dll  XREMain::XRE_mainRun()  toolkit/xre/nsAppRunner.cpp:5539
6  xul.dll  XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&)  toolkit/xre/nsAppRunner.cpp:6005
7  xul.dll  XRE_main(int, char**, mozilla::BootstrapConfig const&)  toolkit/xre/nsAppRunner.cpp:6062

All OS.

Bug 1471720 is not on 128. It would seem bug 1909700 kind of describes the problem though, even if not a solution.