Online Accounts error when adding a Google account

[Guillaume Gonthier]

When I try to add a Google account using Gnome "Online Accounts" tab from the settings, I encounter an error.

To investigate further, I ran this command from my terminal:
$ gnome-control-center -v

I then tried to add a new Google account, the "Sign in to Google with your browser" popup appears normally.

When I click on the "Sign In..." button, the following errors are displayed in the terminal:

[16908] Sandbox: CanCreateUserNamespace() unshare(CLONE_NEWPID): EPERM
[16905] Wayland Proxy [0x7ab3c4692df0] Error: StartProxyServer(): bind() error : Permission denied

Even if I log in from my browser (Firefox 138.0.1 installed using mozillateam PPA), and allow some access permissions for Gnome app (Google Drive in my case), nothing appears on Gnome Online Accounts tab (the popup stays grayed out and never receive anything apparently).

If I chose the option "Copy Link" instead, and open the link in Firefox, I don't have any error displayed in the terminal, but it doesn't work either.

ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: gnome-control-center 1:48.0-1ubuntu3
ProcVersionSignature: Ubuntu 6.14.0-15.15-generic 6.14.0
Uname: Linux 6.14.0-15-generic x86_64
ApportVersion: 2.32.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue May 6 21:33:05 2025
InstallationDate: Installed on 2025-05-04 (2 days ago)
InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Alessandro Astone (aleasto)]

Thank you for the bug report. We need to collect more information.

Please run these commands:
    journalctl -b0 > journal.txt
    journalctl -b-1 > prevjournal.txt
and attach the resulting text files here.

[Alessandro Astone (aleasto)]

This doesn't seem to be the Firefox snap.
How are you installing Firefox?

[Guillaume Gonthier (undebutant)]

Indeed, I'm using a version installed using mozillateam's PPA
https://launchpad.net/~mozillateam/+archive/ubuntu/ppa