AstoundDrive - Google Drive as Encrypted ZIP by Astound Technology

Download Google Drive folders (including subfolders) as password-protected ZIP files with AES-256 encryption. Works with your existing Google session — no setup needed. All files are processed locally

Available on Firefox for Android™

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About this extension

Download any Google Drive folder as a password-protected ZIP file, directly from your browser. AES-256 encryption, recursive subfolders, Google Workspace export (Docs, Sheets, Slides) no OAuth or API keys needed. Everything runs locally, nothing leaves your machine.

AstoundDrive adds a "Download ZIP" button to the Google Drive toolbar. Click it, pick a filename, set a password (or skip it for a regular ZIP), and the extension handles the rest — scanning subfolders, downloading files, encrypting, and saving the archive.

Works with Shared Drives and My Drive. Google Workspace files are exported automatically (Docs → docx, Sheets → xlsx, Slides → pptx, Drawings → png). Supports folders up to 20 levels deep.

No data collection, no analytics, no tracking. The extension only connects to Google's own servers using your existing browser session. Encryption is handled by zip.js (BSD-3-Clause), a well-known open-source library.

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Permissions and data

Required permissions:

Download files and read and modify the browser’s download history
Access browser tabs
Access your data for drive.google.com

Optional permissions:

Access your data for sites in the googleusercontent.com domain
Access your data for drive.google.com
Access your data for clients6.google.com
Access your data for drive.usercontent.google.com
Access your data for docs.google.com

Data collection:

The developer says this extension doesn't require data collection.