Private Site Scrubber от Sayluh

Private Site Scrubber helps users review and clean Firefox traces connected to websites they want to remove from local browser records.

Features:

Scan history, bookmarks, cookies, download records, cache, and site storage for matching domains
Match against user-defined websites and keywords
Include built-in suspicious/adult domain and keyword lists
Protect safe websites with a keep/allow list
Delete all matching traces or only selected websites
Delete by trace type for a selected website, such as only history, cookies, bookmarks, downloads, or site data
Show live progress while scanning or deleting
Restore the latest scan results when the popup is reopened
Export scan results as JSON or CSV
Import and export saved rules
Optional full browsing-data clear from the settings page

The add-on works locally in Firefox and is intended to help users manage and remove browser traces stored on their own device.