: Unzip the file (e.g., EraseConvo.zip ) into a dedicated folder on your computer.
: Click "Load unpacked" and select the folder where you extracted the extension files. Safety & Privacy Considerations Download Delete Bulk Facebook Messages extension zip
: Toggle the switch in the top-right corner to Developer Mode . : Unzip the file (e
If you have a .zip file of an extension (often sourced from platforms like GitHub ), follow these steps to install it manually: If you have a
: Most updated versions (as of early 2026) are compatible with the latest Facebook UI and work across personal and business page inboxes. How to Install via ZIP (Manual Method)
: Message deletion is permanent. Once the extension finishes the process, messages cannot usually be recovered.
: It is generally safer to use the Chrome Web Store or Firefox Add-ons rather than downloading .zip files from unverified third-party sites, which may contain malware. How to Delete ALL Messages In Facebook Messenger