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Bug in Firefox 148: blank page in BlueMind

Bug in Firefox 148: blank page in BlueMind
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Information as of 2026-03-04 – 10:00 AM

Since updating to Mozilla Firefox 148, some users have been experiencing a blank page when logging in or full page refreshes within the calendar.

After investigation, the issue was traced to a bug introduced in Firefox 148 related to Service Worker handling and Content Security Policy (CSP) enforcement. The behavior does not occur in Firefox 147, Chrome, or Firefox 148 when the Service Worker is disabled. A bug report has been filed with Mozilla.

Temporary Workaround

While waiting for a fix:

  • Use the Firefox ESR version, which is officially supported
  • Temporarily use a different browser

A BlueMind workaround is being investigated and will be made available for the affected versions as soon as further clarification is provided by Mozilla.

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