ScamAvert by ScamAvert
ScamAvert helps you spot deceptive websites, suspicious links, sign-in traps and risky downloads, with clear warnings as you browse.
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About this extension
ScamAvert helps you recognise and avoid online scams while you browse. It checks website addresses, links, sign-in forms, page behaviour and downloads for common signs of deception, then explains what looks suspicious.
Protection includes:
- Fake and lookalike website addresses
- Misleading links and redirects
- Suspicious sign-in forms and authentication-code requests
- Risky download flows and fake updates
- Copy-and-run tricks
- Fake warnings, pressure tactics and recovery-phrase requests
These checks run locally in your browser and do not require a ScamAvert account.
Sign in for additional tools:
- Website reputation checks
- Check a Link to investigate a suspicious URL without opening it on your computer
- Ask ScamAvert to analyse suspicious messages, links and images
ScamAvert keeps you in control. You can review findings, dismiss warnings, manage exceptions and continue to flagged destinations where supported.
ScamAvert helps identify scam indicators, but no protection can detect every scam and an unflagged website should not automatically be considered safe.
The ScamAvert Windows desktop app is optional. The browser extension works independently.
Protection includes:
- Fake and lookalike website addresses
- Misleading links and redirects
- Suspicious sign-in forms and authentication-code requests
- Risky download flows and fake updates
- Copy-and-run tricks
- Fake warnings, pressure tactics and recovery-phrase requests
These checks run locally in your browser and do not require a ScamAvert account.
Sign in for additional tools:
- Website reputation checks
- Check a Link to investigate a suspicious URL without opening it on your computer
- Ask ScamAvert to analyse suspicious messages, links and images
ScamAvert keeps you in control. You can review findings, dismiss warnings, manage exceptions and continue to flagged destinations where supported.
ScamAvert helps identify scam indicators, but no protection can detect every scam and an unflagged website should not automatically be considered safe.
The ScamAvert Windows desktop app is optional. The browser extension works independently.
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Permissions and data
Required permissions:
- Download files and read and modify the browser’s download history
- Display notifications to you
- Access browser activity during navigation
- Access your data for all websites
Optional permissions:
- Access your data for api.scamavert.com
- Access your data for localhost:4322
Data collection:
- The developer says this extension doesn't require data collection.
Optional data collection, according to the developer:
- Authentication information
- Browsing activity
- Personal communications
- Technical and interaction data
More information
- Add-on Links
- Version
- 2.0.21
- Size
- 370.57 KB
- Last updated
- 17 hours ago (Sep 29, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
- Tags
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