1962981 - Thunderbird shutdown never finishes if pref browser.cache.disk.enable ist set to false and privacy.sanitize.sanitizeOnShutdown and privacy.clearOnShutdown.cache are set to true

Status: UNCONFIRMED

(Thunderbird :: General, defect)

Description

[[:vitusb]]

Attachment: bug_id-1806831_01.jpg

Hello,

i hav a resurrection of bug_id 1806831 in TB v128.9.2.0:

https://bugzilla.mozilla.org/show_bug.cgi?id=1806831

(see ScreenShot).

Steps to reproduce:

When pref "browser.cache.disk.enable" ist set to "false" ...
... and ...
pref "privacy.sanitize.sanitizeOnShutdown" is set to "true"
... and ...
pref "privacy.clearOnShutdown.cache" is set to "true".

Actual results:

Continues to run under background processes (see ScreenShot).

**Workaround is to set pref "browser.cache.disk.enable" to "true": **

• pref("browser.cache.disk.enable", true);

... and leave "privacy.sanitize.sanitizeOnShutdown" and "privacy.clearOnShutdown.cache" untouched (both: "true").

Expected results:

TB should have ended himself completely ...

Comment 1

[Valentin Gosu [:valentin] (he/him)]

Does this also reproduce in Firefox, or just thunderbird?
I set these prefs in Firefox 137 on Windows, and was able to shutdown without any issues.

Comment 2

[[:vitusb]]

(In reply to Valentin Gosu [:valentin] (he/him) from comment #1)

Does this also reproduce in Firefox, or just thunderbird?
I set these prefs in Firefox 137 on Windows, and was able to shutdown without any issues.

---

Hello,
excuse me i forgot to mention the used Thunderbird version; we're using for both FF/TB-releases the ESR-builds:

Thunderbird v128.9.2.0 x86 ESR-Release, Firefox x64 128.9.0 ESR-Release.

Does this also reproduce in Firefox, or just thunderbird?

I've not tested the three prefs under my FF-release yet.
I don't know if the code-base is 100% identical (comm-central), maybe it's an x86-related issue under Windows.

I wanted to file that issue, because the error is nearly identical to: https://bugzilla.mozilla.org/show_bug.cgi?id=1806831

Best regards ...

Comment 3

[[:vitusb]]

(In reply to [:vitusb] from comment #2)

(In reply to Valentin Gosu [:valentin] (he/him) from comment #1)

Does this also reproduce in Firefox, or just thunderbird?
I set these prefs in Firefox 137 on Windows, and was able to shutdown without any issues.

---

Hello,
excuse me i forgot to mention the used Thunderbird version; we're using for both FF/TB-releases the ESR-builds:

Thunderbird v128.9.2.0 x86 ESR-Release, Firefox x64 128.9.0 ESR-Release.

Does this also reproduce in Firefox, or just thunderbird?

I've not tested the three prefs under my FF-release yet.
I don't know if the code-base is 100% identical (comm-central), maybe it's an x86-related issue under Windows.

I wanted to file that issue, because the error is nearly identical to: https://bugzilla.mozilla.org/show_bug.cgi?id=1806831

Best regards ...

I mistakenly assigned this issue to Firefox, because i used the "clone bug"-function above :-( ...
This BugID should be assigned to "Thunderbrid" and its cache- / cache-config logic.

Best regards ...

Comment 4

[[:vitusb]]

(In reply to [:vitusb] from comment #3)

(In reply to [:vitusb] from comment #2)

(In reply to Valentin Gosu [:valentin] (he/him) from comment #1)

Does this also reproduce in Firefox, or just thunderbird?
I set these prefs in Firefox 137 on Windows, and was able to shutdown without any issues.

---

Hello,
excuse me i forgot to mention the used Thunderbird version; we're using for both FF/TB-releases the ESR-builds:

Thunderbird v128.9.2.0 x86 ESR-Release, Firefox x64 128.9.0 ESR-Release.

Does this also reproduce in Firefox, or just thunderbird?

I've not tested the three prefs under my FF-release yet.
I don't know if the code-base is 100% identical (comm-central), maybe it's an x86-related issue under Windows.

I wanted to file that issue, because the error is nearly identical to: https://bugzilla.mozilla.org/show_bug.cgi?id=1806831

Best regards ...

I mistakenly assigned this issue to Firefox, because i used the "clone bug"-function above :-( ...
This BugID should be assigned to "Thunderbrid" and its cache- / cache-config logic.

Best regards ...

Here a quick response:
on Firefox x64 128.9.0 ESR-Release i cannot reproduce this issue (x86 version: NOT TESTED).

I've used in both products a policies.json-file to enforce some policies. so ...

• This is only available in FF:

	"SanitizeOnShutdown": {
		"Cache": true,
		...

I think policies are prioritized over prefs in "firefox.cfg" or "thunderbird.cfg" and all 3 prefs in TB were set in "thunderbird.cfg". In FF "SanitizeOnShutdown.Cache" (see above) is set in "policies.json", "browser.cache.disk.enable" is set in user "prefs.js".

The worst thing is, that i cannot reproduce the issue here on my local Windows 10 x64 - machine. The issue raised on a Windows 11 x64 System. On that Machine, the workaround ( pref("browser.cache.disk.enable", true); ) worked for me.

The "thunderbird.cfg" is a complex JavaScript-Code with an observer for activating addons later, when AddonManager is up. I do also a "process.run" in order to preconfigure LDAP-attributes. I'm utilizing async functions, using promises with ".then-evaluations" and so on ... but there are no relevant errors in TB-console.

Hmm, needs more investigation ...

Best regards ...

Comment 5

[Magnus Melin [:mkmelin]]

Tried it on Thunderbird Daily (on linux), and it shuts down nicely.

Comment 6

[Wayne Mery (:wsmwk)]

WFM also daily 2025-04-30 and 2025-05-01 on Mac