ExtensionWatch
Detect ownership transfers and permission upgrades on extensions you trust.
Standalone $2.99/mo or $29.90/yr.
Why it matters
What ExtensionWatch does that nothing else does
- Benefit 1:
Only extension that monitors your other extensions for changes over time.
- Benefit 2:
Detects ownership transfers (name+homepage+updateUrl change at the same time).
- Benefit 3:
Alerts on permission upgrades before the malicious payload activates.
- Benefit 4:
Pro adds 24h auto-scan, version history, and exportable change reports.
Pricing
Buy ExtensionWatch alone, or get the bundle
Use only this extension? Buy it standalone. Use three or more Aegis extensions? The Pro Pack pays for itself.
Standalone
ExtensionWatch Pro
$2.99/mo
Or $29.90/yr — save when paid annually.
Pro tier on ExtensionWatch only. Cancel anytime.
Get ExtensionWatch ProBest value
Save $21/yrAegis Pro Pack
$9.99/mo
Or $99/yr — covers every Aegis extension you install.
Unlocks Pro on ExtensionWatch and every other Aegis extension. New extensions included automatically.
Get the Pro PackBuilt the Aegis way
Privacy you can verify, not just claim
On-device by default
Every Aegis extension runs in your browser. No silent cloud upload, no server-side processing of your activity.
Never sold, never bundled
Aegis extensions never change ownership. Updates come from the same publisher you trusted at install.
No account required
Install and use immediately. Pro features unlock with a single sign-in to your Aegis Pro Pack.
MV3-native
Built for Chrome Manifest V3 from day one — no deprecation warnings, no broken background pages.
Why switch
ExtensionWatch vs Chrome Safety Check
Chrome Safety Check reacts after Google removes a malicious extension. ExtensionWatch alerts on the upstream patterns — ownership transfers, permission upgrades, version churn — before the malicious payload ships.
| Feature | ExtensionWatch | Chrome Safety Check |
|---|---|---|
| Monthly price | $2.99/mo | Free (with the trade-offs above) |
| Account required | No — install and use immediately | Often yes (varies by competitor) |
| Data leaves the browser | No — on-device by default | See competitor privacy policy |
| Ownership transfer risk | Aegis never sells extensions | Varies — see ExtensionWatch in this catalog |
| Bundled with Aegis Pro Pack | Yes — $9.99/mo unlocks every extension | No bundle |
See it in action
ExtensionWatch screenshots
More screenshots and the full feature walkthrough live on the ExtensionWatch landing page.
Common questions
- How is ExtensionWatch different from Extension Guardian?
- Extension Guardian is a one-shot audit you run when you decide to clean house. ExtensionWatch runs continuously (24h auto-scan in Pro) and alerts on changes between scans. Pair them: Guardian for the periodic review, Watch for the always-on alarm.
- Does ExtensionWatch slow Chrome down?
- No. The scan runs once when triggered (manual in free, 24h in Pro) and reads the locally cached extension manifests. There is no continuous background polling and no network traffic during the scan.
- What does "permission upgrade alert" mean in practice?
- When an installed extension auto-updates and the new version requests broader permissions (e.g. `<all_urls>` where it previously asked for one domain), ExtensionWatch surfaces a diff so you can review the change before letting the extension run.
- How does the Aegis Pro Pack unlock ExtensionWatch?
- Sign in to aegisfirma.com from any installed Aegis extension popup. The cookie-auth flow detects your active Pro Pack and unlocks Pro features instantly — no license key to copy or paste.
- Where is my ExtensionWatch data stored?
- ExtensionWatch stores everything in chrome.storage on your device. Your subscription record lives in our payment provider's account; we do not aggregate browsing or activity data.
- Can I cancel ExtensionWatch Pro anytime?
- Yes — billing stops at the end of the current period. Pro features remain active until the period ends, then drop back to the free tier.
- Why should I trust an extension I just heard of?
- Aegis extensions never change ownership and never sell user data. We publish security audit results and ship MV3-native code so Chrome itself enforces the permissions we claim.
Try ExtensionWatch free, upgrade when ready
Free tier covers the basics. Pro Pack at $9.99/mo unlocks every Aegis extension at once.