Extension not loading on cloud.microsoft domains after an update to the Microsoft Edge Browser (version 150)
Timeline · 5 updates
- investigating Jul 10, 2026, 05:42 PM UTC
We are currently investigating this issue.
- investigating Jul 10, 2026, 06:56 PM UTC
This is due to an update by MS and impacting multiple extensions. We have escalated to Microsoft and are pushing for a solution as soon as possible.
- investigating Jul 10, 2026, 07:13 PM UTC
We are continuing to investigate this issue.
- investigating Jul 10, 2026, 07:25 PM UTC
We are continuing to investigate this issue.
- resolved Jul 12, 2026, 07:15 PM UTC
Per https://github.com/microsoft/MicrosoftEdge-Extensions/issues/644#issuecomment-4933908795 "Currently, extensions are not designed to work with Copilot. At this time, the list of sites where Microsoft extensions are blocked includes Copilot, Edge:// pages, and EAS*" From our research, it seems that the affected domains are only the following 2 domains: https://m365.cloud.microsoft/ https://copilot.com/