The extension is primarily designed to automate the removal or archiving of conversations in a single click, particularly for users with years of accumulated inbox clutter. While most users install these tools directly via the Chrome Web Store , some seek a .zip or .crx version for manual installation in "Developer Mode". Core Functionality & Features
These extensions typically inject new interface elements, such as checkboxes or "Delete All" buttons, into the standard Facebook Messenger desktop site. Download Delete Bulk Facebook Messages extension zip
If you have a .zip file of an extension (often sourced from platforms like GitHub ), follow these steps to install it manually: The extension is primarily designed to automate the
: 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) If you have a
: Click "Load unpacked" and select the folder where you extracted the extension files. Safety & Privacy Considerations