Outage in QLess

Display issues when using Firefox version 143.0 (all other browsers are unaffected)

Resolved Minor
September 17, 2025 - Started about 2 months ago - Lasted 14 days
Official incident page

Incident Report

Our team is currently investigating an issue with logging into CEC that is only impacting those that have recently upgraded their version of Firefox. While the team is working on identifying the issue we advise that the version of Firefox be rolled back or using a different browser the Google Chrome if possible to ensure minimal downtime. Additional information will be provided as soon as the issue is resolved.

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 10/01/2025 07:51AM

We will continue to monitor our solution for this Firefox-specific bug, but it appears that our solution has resolved the issue, and Firefox will implement its own solution in the coming months.

MONITORING about 1 month ago - at 09/30/2025 10:50AM

A fix has been implemented and we are monitoring the results.

IDENTIFIED about 1 month ago - at 09/29/2025 09:50PM

The team at Firefox has identified the issue as a bug and plans to address the problem in a November release. However, to more immediately address the issue, we will release a workaround during the upcoming server maintenance periods.

INVESTIGATING about 2 months ago - at 09/17/2025 02:05PM

We are continuing to investigate this issue.

INVESTIGATING about 2 months ago - at 09/17/2025 01:31PM

Our team is currently investigating an issue with logging into CEC that is only impacting those that have recently upgraded their version of Firefox. While the team is working on identifying the issue we advise that the version of Firefox be rolled back or using a different browser the Google Chrome if possible to ensure minimal downtime. Additional information will be provided as soon as the issue is resolved.

Latest QLess outages

Server Outage - about 1 month ago
NA4 Currently Unavailable - 8 months ago
NA4 Outage - 8 months ago
NA1 Outage - 9 months ago
Emergency Reboot of CA1 - about 1 year ago

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