Cleansur by Horseflesh
Automatically enables Reader Mode on articles and redirects to cached copies via archive.is. Add any site from the toolbar popup. All settings stored locally.
Extension Metadata
About this extension
Cleansur gives you a cleaner, distraction-free reading experience in Firefox.
Note: When cached site redirect is enabled for a site, the article URL is sent to archive.is (a third-party archiving service) to retrieve a cached copy. Cleansur itself collects no data.
- Automatically enables Reader Mode on article pages for sites you choose
- Optionally retrieves a cached copy of articles via archive.is
- Add sites via the toolbar popup or manage them in Options
- All settings stored locally on your device — nothing is sent to our servers
Note: When cached site redirect is enabled for a site, the article URL is sent to archive.is (a third-party archiving service) to retrieve a cached copy. Cleansur itself collects no data.
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.1.1
- Size
- 36.41 KB
- Last updated
- 5 days ago (Apr 13, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection