1989880 - ESET on MacOS Tahoe 26 blocks Firefox internet access

Status: RESOLVED INCOMPLETE

(Core :: Networking: DNS, defect, P2)

Description

[Denys:denyshon]

Attachment: error_message_eset_macos26.png

Steps to reproduce:

On macOS Tahoe 26

1. Install and enable ESET Cyber Security Pro.
2. Try to open any website in Firefox.

Actual results:

An error message is displayed, saying "Firefox can't protect your request for this site's address through our secure DNS provider. Here's why: Firefox wasn't able to connect to mozilla.cloudflare-dns.com."
The message is displayed regardless of whether DNS over HTTPS is enabled or not.

Expected results:

The requested website is opened.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Networking: DNS' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Randell Jesup [:jesup] (needinfo me)]

It's odd you're getting a DoH error if DoH is off. Can you re-verify that this happens with DoH off? Just for completeness, after disabling it try restarting the browser (shouldn't be needed, but just in case)
Can you provide the about:support info?
Can you provide the contents of about:config with modified prefs checked?
Are you running any extensions?
Thanks!

Comment 3

[Denys:denyshon]

Hi Randell,

The reporter mentioned turning DoH off (attaching a screenshot) and restarting Firefox.

Valentin asked them to provide the about:support info a couple of weeks ago, but they haven't reached back yet. I'll post an update here once we get a reply.

Comment 4

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

https://www.eset.com/uk/home/cyber-security-pro/download/
Please note: this security solution has entered its End of Life phase and will be discontinued in the future.