Wrong hour displayed within Firefox

[Viguro79]

What is going wrong?

Withing Chrome 90.0.4430.93 the hour is displayed correctly

Within Firefox 88.0.1, the displayed hour is the UTC hour :

To Reproduce

1. Create a poll within Chrome
2. Select date and hour (say 20:00 Paris Hour / 18:00 UTC)

Expected behavior
When using the poll link within Firefox, I expect to see the Paris Hour. Whereas the displayed hour is the UTC hour.

Information about your polls installation

Polls version? 1.8.3

Fresh installation or update from a prior version (from which one)?
Update from a prior one

How did you install this version?(Appstore or describe installation)
Appstore

Information about your Instance of Nextcloud

Nextcloud version: 21.0.0

Nextcloud configuration:
$CONFIG = array (
'instanceid' => 'xxxx',
'passwordsalt' => 'xxx',
'secret' => 'xxx',
'trusted_domains' =>
array (
0 => 'xxx',
),
'datadirectory' => 'xxx',
'dbtype' => 'mysql',
'version' => '21.0.0.18',
'overwrite.cli.url' => 'xxx',
'dbname' => 'xxxx',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'xxxx',
'mysql.utf8mb4' => true,
'dbuser' => 'xxx',
'dbpassword' => 'xxx',
'installed' => true,
'maintenance' => false,
'updater.secret' => 'xxxx',
'theme' => '',
'loglevel' => 2,
'updater.release.channel' => 'stable',
'mail_smtpmode' => 'smtp',
'mail_smtpsecure' => 'tls',
'mail_sendmailmode' => 'smtp',
'mail_from_address' => 'nextcloud',
'mail_domain' => 'xxx',
'mail_smtpport' => '587',
'mail_smtphost' => 'xxx',
'mail_smtpauth' => 1,
'mail_smtpname' => 'xxxx',
'mail_smtppassword' => 'xxxx',
'app_install_overwrite' =>
array (
0 => 'whiteboard',
),

[dartcafe]

See #995 (comment)

[Viguro79]

Great. I disabled the Resist FingerPrinting extension which was overriding the privacy.resistFingerprinting value to false in config:about. I then restarted Firefox and the displayed value in Nextcloud is now correct.
Thansk.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.