Direct answer
Review extension ownership, source and requested permissions against the work it performs, then manage approvals and exceptions through browser policy and retest legitimate workflows.
Inventory extensions
For representative managed browser profiles, record extension ID, version, publisher, installation source and business owner. Consider centrally installed and user-installed extensions. An extension's name or popularity alone does not establish that it is appropriate for sensitive work.
Evaluate permissions
Microsoft distinguishes website host permissions from device permissions. Compare the requested sites and capabilities with the extension's actual purpose. An extension that can read or change data across many sites may need closer review than one restricted to an approved internal application.
Reference: Microsoft: Manage Edge extensions.
Manage and retest
Ask the owner to remove unused extensions or apply the appropriate allow, block and permission policies. Pilot changes for required browser workflows and document exceptions, version changes and review dates. Recheck the effective policy and user experience after deployment.
Example: an extension with broad website access
An extension used only for one internal portal may request permission to read every visited site. Ask its owner and publisher why the permission is needed, check the approved configuration options and test any narrower policy with the actual workflow. Record the version and review date because permissions can change during updates.
Assessment limits
Permissions indicate potential access, not proof of malicious behavior. Browser policy and extensions can change, and other browsers require separate assessment.
Frequently asked questions
Does a familiar extension name guarantee safety?
No. Check its publisher, source, version, permissions and business purpose.
Do all extensions need access to every website?
No. Review the requested host permissions and whether they are necessary for the intended task.
Will an Edge policy control all browsers?
Not necessarily. Assess the browser and management controls actually used by the organization.
Primary sources and further reading
These guides combine published security guidance with practical assessment planning. Adapt checks to the owner's policy, environment, and authorized scope.
This guide was prepared with AI assistance using the linked sources and illustrative examples. Check current vendor guidance and your environment before making changes.