Is Copilot Sidebar safe?
Copilot Sidebar removes Microsoft Copilot frame-protection headers so Copilot can load inside its Firefox sidebar.
The extension grants itself request-blocking access for copilot.microsoft.com and removes Content-Security-Policy and X-Frame-Options response headers from that site. It then embeds Microsoft Copilot in a Firefox sidebar iframe, so use of the sidebar connects directly to copilot.microsoft.com.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
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What it can do
Permissions this extension asks for, as declared in version 1.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on copilot.microsoft.com
https://copilot.microsoft.com/
Watch every request your browser makes
webRequest
Watch, block and rewrite every request your browser makes
webRequestBlocking
Where it sends data
Destinations our analysis observed Copilot Sidebar contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- copilot.microsoft.com
Copilot Sidebar sends data to copilot.microsoft.com. 3 other extensions we have analysed send data here.