x4doubt by horntobewild
Fact-check content and claims on any webpage
Extension Metadata
About this extension
x4doubt allows you to investigate specific claims or entire articles that you find online. The extension leverages multiple search engines to check for potential other signals, confirming or contradicting the stated claim. Via a login & dashboard you can revisit all your tested claims.
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Required data collection, according to the developer:
- Browsing activity
- Website content
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 76.81 KB
- Last updated
- 6 days ago (Apr 2, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection