Arch Linux

dictionary

Member

Registered: 2021-02-19

Posts: 23

[SOLVED] Arch Chromium notifications don't work on a specific website

Hi, I'm trying to find the culprit of my problem and after some test at least I can confine the range to a specific set of combinations. I'm on Arch, KDE Plasma.

- Chromium (installed from official Arch repo) doesn't display notifications when I receive messages on the webclient of 3CX (https://www.3cx.com/).
- Chromium (installed from official Arch repo) displays the test notifications of e.g. https://www.bennish.net/web-notifications.html
- Chromium (installed from https://github.com/chromium-unofficial- … est-linux) displays notifications when I receive messages on the webclient of 3CX.

(- Firefox: it just works)

I don't know if the 3CX webclient uses a particular kind of web notifications, or if I'm missing some kind of library on my system that is needed by Chromium.
What's different between Arch Chromium and the one from the git repo I linked?

EDIT: Arch Chromium was tested vanilla, no modified settings.

Last edited by dictionary (2025-08-26 16:08:36)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,075

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

Did you simply accidentally block them when first being asked whether to allow notifications for that specific site? Double check your website permissions in settings.

dictionary

Member

Registered: 2021-02-19

Posts: 23

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

Did you simply accidentally block them when first being asked whether to allow notifications for that specific site? Double check your website permissions in settings.

Nope, the specific website is in the allow list.

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 73,695

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

https://stackoverflow.com/questions/497 … ug-feature

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

dictionary

Member

Registered: 2021-02-19

Posts: 23

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

https://stackoverflow.com/questions/497 … ug-feature

Very helpful, thank you!
I used the Application -> Push Messagging submenu, and I can confirm that using Arch Chromium my computer is not receiving the notifications from other users (nothing appears in that submenu). It only works when I manually send a notification from Application -> Service Workers -> Push button.

This doesn't happen using the alternative Chromium linked in the first post, the Application -> Push Messagging submenu is correctly displaying the messages from other users.

As a side note, probably unrelated to this issue, I noticed also that both Chromium don't display a popup notification if there's already a Chromium notification in the plasma menu. If I clean them, the next message gets the popup. Firefox is not affected by this.

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 73,695

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

Have you tried the behavior from a clean profile / fresh user account?

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

dictionary

Member

Registered: 2021-02-19

Posts: 23

Re: [SOLVED] Arch Chromium notifications don't work on a specific website

Yes it was a clean profile.

SOLVED thanks to an AI. It's been a long trip of testing, but this was the situation:
-the github Chromium worked out of the box because it includes FCM, used by 3CX notifications. Proved that it connects to https://fcm.googleapis.com/...
-the Arch Chromium doesn't include FCM, so 3CX automatically subscribes to https://jmt17.google.com/... and this domain was blocked via DNS on my network.

That's all, it look so simple when you know it...
Thank a lot to both of you guys for the inputs!