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Review browser extensions before enterprise deployment
Assess permissions, site access, updates and the ability to remove an extension.
· 16 min
What this guide helps achieve
- Inventory extensions
- Qualify permissions
- Control updates
- Prepare removal
Quick check
- Which specific task requires the extension?
- Which sites and data can it access?
- Are permissions proportionate?
- Who watches new versions?
- How can it be disabled on every affected endpoint?
Step-by-step method
- 01
Inventory usage
Collect installed extensions, identifiers, versions, browsers, users, teams and owners. Find duplicates and extensions without an accountable owner.
Deliverable: dated extension and ownership register.
- 02
Define the need
Connect each extension to a real task and available alternatives. Define the data and sites involved before judging its permissions.
Deliverable: use and scope brief.
- 03
Review access
Read the manifest and permission warnings for host access, tabs, storage, clipboard and other requested capabilities. Distinguish standing from optional permissions.
Deliverable: justified or reducible permissions grid.
- 04
Check publisher and changes
Document the publisher, distribution source, privacy policy and version changes. Store presence alone does not replace this review.
Deliverable: provenance record and reassessment trigger.
- 05
Deploy with controls
Test the extension in an appropriate profile with suitable data, then set an approved list or blocking rules for the managed browser.
Deliverable: decision, deployment settings and owner.
- 06
Plan the exit
Prepare rapid disablement, removal, identification of affected endpoints and handling of potentially exposed data during an incident.
Deliverable: tested removal procedure.
Management indicators
| Indicator | What it measures | First action |
|---|---|---|
| Coverage | Extensions with a documented owner and purpose | Resolve ownerless installs |
| Justified access | Permissions tied to required functions | Reduce or reject excessive access |
| Changes reviewed | Material versions assessed before broad rollout | Pause a risky update |
| Removal tested | Endpoints covered by a disablement test | Fix deployment gaps and exceptions |
Common pitfalls
- Treating store listing as security approval
- Accepting access to every site without a reason
- Missing extensions in personal profiles
- Failing to review permissions after updates
Frequently asked questions
Is a popular extension safe?
Popularity does not establish which permissions your use requires, which data it can access or how it may change.
Must every extension be prohibited?
A proportionate policy evaluates the need, access and managed browser context.
When should it be reassessed?
After material permission, ownership, function or version changes and during regular fleet reviews.
Official references
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