1736260 - DoH turned off - Firefox still using Cloudflare

Status: RESOLVED FIXED

(Firefox :: Settings UI, defect, P2)

Description

[Edward]

Attachment: about-networking.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:93.0) Gecko/20100101 Firefox/93.0

Steps to reproduce:

DoH is turned off in the Settings, yet on the about:networking page, it indicates it's using DoH via Cloudflare. Screenshots attached.

Actual results:

DoH remains on, despite settings showing it's off.

Expected results:

DoH should remain off, if setting show it's off.

Comment 1

[Edward]

Attachment: firefox-net-settings.png

Comment 2

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

The UI just shows the current TRR URI as parsed from the prefs. I'll add a different label to show the status of the TRR service (enabled/disabled)

Comment 3

[Pablo]

Checked bug on Windows10 64bit and MacOs 11 and ubuntu 20.
using Firefox beta 94.0b7, release 93.0 and nightly 95
adding tracking flags.

Comment 4

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

Attachment: Bug 1736260 - Also show the TRR mode in about:networking r=nhnt11

Just having the TRR URI displayed in about:networking makes it confusing
to people expecting it to be empty when TRR is disabled.
This adds the TRR mode to the page.

Depends on D128888

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/da505302e90f
Also show the TRR mode in about:networking r=nhnt11,fluent-reviewers,flod

Comment 6

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/da505302e90f

Comment 7

[mozbugz]

Dupe of https://bugzilla.mozilla.org/show_bug.cgi?id=1686797

Comment 9

[Edward]

I am now using a different Linux distribution which provides Firefox ESR, current version is 91.3.0esr.

I am seeing the same behavior in this release. The DoH box is unchecked, but about:networking is showing it's using Comcast's DoH service. Comcast is my ISP.

Is the fix also going to be included in the next ESR?

Thank you.

Comment 10

[Edward]

This issue is present in Firefox 91.4.0esr. Reopening.

Comment 11

[Edward]

[Tracking Requested - why for this release]:

Comment 12

[(inactive) Nihanth Subramanya [:nhnt11]]

Edward, could you navigate to about:config and share the values of the following prefs:

1. All prefs that start with "doh-rollout."
2. network.trr.mode
3. network.trr.uri

Comment 13

[Edward]

doh-rollout.balrog-migration-done true
doh-rollout.clearModeOnShutdown false
doh-rollout.disable-heuristics true
doh-rollout.doneFirstRun true
doh-rollout.doorhanger-decision UIOk
doh-rollout.enabled true
doh-rollout.home-region US
doh-rollout.profileCreationThreshold 1896163212345
doh-rollout.uri https://mozilla.cloudflare-dns.com/dns-query
network.trr.mode 5
network.trr.uri https://mozilla.cloudflare-dns.com/dns-query

Comment 14

[(inactive) Nihanth Subramanya [:nhnt11]]

Thanks. Those indicate that DoH is turned off in your profile and we should be running no heuristics, as well as not be using DoH for DNS.

Could you:

1. Browse the web a bit, then navigate to about:networking#dns, and check the "TRR" column. You should see "false" on every row.
2. Navigate to about:telemetry#events-tab - and if you see any events that have category "doh" and method "evaluate_v2", please share those whole rows here.

Comment 15

[(inactive) Nihanth Subramanya [:nhnt11]]

See comment 14

Comment 16

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

Also, since we already landed something for this bug, it should stay closed and we should open a new one for the different issue reported in comment 9.

Comment 17

[Edward]

(In reply to Nihanth Subramanya [:nhnt11] from comment #14)

Thanks. Those indicate that DoH is turned off in your profile and we should be running no heuristics, as well as not be using DoH for DNS.

Could you:

1. Browse the web a bit, then navigate to about:networking#dns, and check the "TRR" column. You should see "false" on every row.
2. Navigate to about:telemetry#events-tab - and if you see any events that have category "doh" and method "evaluate_v2", please share those whole rows here.

Confirming 'false' listed for every item under TRR.

On about:telemetry#events-tab: it says "Sorry. There is currently no data available in Events"

Comment 18

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

That means TRR isn't being used.
I'm going to close this for now, since the issue in comment 0 has been resolved.
Please file another bug if you find there's a problem with the fix. Thanks!

Comment 19

[Edward]

(In reply to Valentin Gosu [:valentin] (he/him) from comment #18)

That means TRR isn't being used.
I'm going to close this for now, since the issue in comment 0 has been resolved.
Please file another bug if you find there's a problem with the fix. Thanks!

Bug 1745798 opened for 91esr. Thank you.