Question 1

What is Classroom Quick Downloader?

Accepted Answer

Classroom Quick Downloader is a browser extension that adds one-click file downloads and batch download controls inside Google Classroom pages.

Question 2

Who should use it?

Accepted Answer

Students, teachers, and anyone who regularly downloads assignment files from Google Classroom can use it to reduce repetitive clicks and save time.

Question 3

Is it free?

Accepted Answer

Yes. The extension is completely free to use and has no premium tier.

Question 4

Do I need to create an account?

Accepted Answer

No account is required. Install it, open Classroom, and the download controls appear where supported.

Question 5

Does it work on the Classwork tab?

Accepted Answer

Yes. CQD supports both the Stream tab and the Classwork tab. It detects downloadable attachments across all supported Classroom views.

Question 6

Does it work on mobile?

Accepted Answer

Not directly. Browser extensions are a desktop feature. On mobile, you would need to use a mobile browser that supports extensions (like Firefox for Android), but this is not officially tested.

Question 7

Is there a limit to how many files I can download at once?

Accepted Answer

CQD itself doesn't impose a limit. However, your browser may throttle concurrent downloads — typically 6–10 at a time. CQD queues the rest and downloads them as slots free up.

Question 8

Does it change the file names or formats?

Accepted Answer

No. Files are downloaded exactly as they are hosted on Google Classroom. The original file names and formats are preserved.

Question 9

Which browsers are supported?

Accepted Answer

Chrome, Firefox, Edge, and most Chromium-based browsers like Brave, Arc, Opera, and Vivaldi are supported.

Question 10

Does it support Safari?

Accepted Answer

Not currently. The extension depends on browser extension APIs that are not fully available in Safari for this workflow.

Question 11

Does it work with Google Workspace school accounts?

Accepted Answer

Yes. It works with both personal Google accounts and Google Workspace accounts used by schools and institutions.

Question 12

Where can I install it?

Accepted Answer

Use the official store links in the website header or from the project page on GitHub. It is available on the Chrome Web Store, Firefox Add-ons, and Edge Add-ons.

Question 13

How do I uninstall it?

Accepted Answer

Right-click the extension icon in your browser toolbar and choose "Remove". You can also go to your browser's extensions page and remove it from there.

Question 14

How large is the extension?

Accepted Answer

The extension is very lightweight — under 200KB. It has no external dependencies and does not load any third-party scripts.

Question 15

Does it work on Brave with Shields enabled?

Accepted Answer

Yes. CQD works normally with Brave Shields enabled since it operates entirely within Google Classroom's existing page context and doesn't inject cross-site resources.

Question 16

Can I use it on a Chromebook?

Accepted Answer

Absolutely. Chromebooks support Chrome extensions natively. Install CQD from the Chrome Web Store and it will work the same as on any desktop Chrome browser.

Question 17

Does CQD collect personal data?

Accepted Answer

CQD is designed to avoid collecting personal content. Operational analytics are limited to service-level metrics needed to monitor reliability and usage trends.

Question 18

Are my downloaded files uploaded anywhere?

Accepted Answer

No. Files are downloaded directly to your own device using the browser's built-in download mechanism. Nothing is routed through external servers.

Question 19

Do you store raw IP addresses?

Accepted Answer

Public-facing analytics are country-level aggregates. The system is designed to avoid exposing raw IP information in public endpoints.

Question 20

Does CQD use tracking cookies?

Accepted Answer

No. CQD does not set any cookies, tracking pixels, or analytics beacons. There are no third-party analytics libraries included.

Question 21

Is CQD compliant with GDPR?

Accepted Answer

CQD minimizes data collection by design. It does not collect or store personally identifiable information, which aligns with GDPR data minimization principles.

Question 22

Where can I read the full privacy policy?

Accepted Answer

Use the Privacy page on this website for the user summary, then open the full policy document from that page for complete details.

Question 23

Does CQD make network requests?

Accepted Answer

CQD sends minimal aggregate analytics (download counts, browser version) to the CQD backend for reliability monitoring. No personal data, file content, or classroom details are transmitted.

Question 24

How does "Download All" work?

Accepted Answer

On supported Classroom views, the extension identifies downloadable attachments and triggers downloads in batch with one action. Files are downloaded concurrently.

Question 25

Can I still download files one by one?

Accepted Answer

Yes. Individual file download controls remain available in addition to batch actions. CQD adds buttons, it does not remove existing ones.

Question 26

Why does Google Drive still show a warning sometimes?

Accepted Answer

Some files can still trigger Google or browser safety checks (e.g. virus scanning for large files). CQD reduces steps but cannot bypass provider-level security prompts.

Question 27

Does this make file transfer speed faster?

Accepted Answer

It improves workflow speed by reducing clicks and page transitions. Actual network transfer speed still depends on Google's servers and your internet connection.

Question 28

What file types are supported?

Accepted Answer

All file types that Google Classroom supports can be downloaded. This includes PDFs, documents, spreadsheets, presentations, images, videos, and any other attachment format.

Question 29

Does it bypass Google Drive download limits?

Accepted Answer

No. CQD works within Google's normal download flow. If a file has exceeded its Drive download quota, CQD cannot override that restriction.

Question 30

Where do downloaded files go?

Accepted Answer

Files go to your browser's default download location. You can change this in your browser's settings under the Downloads section.

Question 31

Does CQD zip the files into one download?

Accepted Answer

No. Each file is downloaded individually as a separate file. This preserves original file names and formats, and avoids the overhead of zipping and unzipping.

Question 32

Can I download files from multiple classes at once?

Accepted Answer

CQD works on one Classroom page at a time. To download from multiple classes, navigate to each class page and use the download controls there.

Question 33

Is it safe to use during exam periods?

Accepted Answer

Yes. CQD only downloads files you already have access to. It doesn't bypass any access restrictions, viewing locks, or exam-specific protections set by your instructor.

Question 34

Does it work on shared school computers?

Accepted Answer

Yes, as long as the browser has the extension installed. Since CQD stores no personal data, using it on shared computers doesn't create privacy concerns.

Question 35

Can I use CQD offline?

Accepted Answer

CQD needs Google Classroom to be loaded (which requires internet). However, once files are downloaded, they are available offline on your device.

Question 36

Does it work on archived or old class posts?

Accepted Answer

Yes. CQD detects downloadable attachments on any accessible Classroom page, including archived classes and older posts, as long as the files are still available.

Question 37

Can it download Google Docs, Sheets, and Slides?

Accepted Answer

CQD downloads files that have a direct download link. Native Google Docs/Sheets/Slides are web documents — they can be exported manually from Google Drive but are not standard file attachments.

Question 38

Will my teacher know I'm using CQD?

Accepted Answer

No. CQD works entirely on the client side in your browser. It doesn't modify any server-side data or send notifications to your teacher. It simply adds download buttons to the page.

Question 39

Can I organize downloads by assignment or topic?

Accepted Answer

CQD downloads files with their original names. For organization, you can create folders on your device and move files after downloading. CQD doesn't rename or reorganize files.

Question 40

I do not see download buttons. What should I check?

Accepted Answer

Refresh the Classroom page, make sure the extension is enabled, and verify you are on a supported Classroom view with downloadable attachments. Try hard-refreshing with Ctrl+Shift+R.

Question 41

What permissions are required?

Accepted Answer

The extension needs permission to run on Classroom pages and to trigger browser downloads. It does not request unrelated site permissions or access to other tabs.

Question 42

Can other extensions interfere with CQD?

Accepted Answer

Yes. Content blockers, ad blockers, or script-modifying extensions can conflict. Try temporarily disabling other extensions to isolate the issue.

Question 43

How do I get the latest fixes?

Accepted Answer

Browser stores usually update extensions automatically. You can also force-check updates from your browser's extension management page (chrome://extensions or about:addons).

Question 44

The popup shows but nothing happens when I click download.

Accepted Answer

This can happen if the page structure changed or if your session expired. Try signing out and back into Google Classroom, then refresh the page.

Question 45

I see CSP errors in the console. Is this a problem?

Accepted Answer

Content Security Policy errors can appear in some institutional environments. CQD is designed to work within CSP constraints, but some strict school policies may need adjustment by IT administrators.

Question 46

Downloads are starting but seem slow.

Accepted Answer

Download speed depends on your internet connection and Google's servers, not CQD. If many files are queued, your browser may serialize some downloads. Try downloading fewer files at a time on slower connections.

Question 47

My school's network blocks the extension. What can I do?

Accepted Answer

Some school networks or managed Chromebooks restrict extension installation. Contact your IT administrator and reference the extension store listing and GitHub repository for review.

Question 48

Does CQD update automatically?

Accepted Answer

Yes. Browser extension stores handle automatic updates. When a new version is published, your browser will download and apply it within a few hours to a couple of days.

Question 49

How can I force an update?

Accepted Answer

Go to your browser's extensions page (chrome://extensions), enable "Developer mode", and click "Update". This will check for and install the latest version immediately.

Question 50

How do I check which version I have?

Accepted Answer

Open your browser's extensions page and find Classroom Quick Downloader in the list. The version number is displayed there. You can also see the latest version on the Changelog page.

Question 51

Can I go back to a previous version?

Accepted Answer

Browser stores don't support rollback natively. If you need an older version, you can download the source code from GitHub, check out a specific tag, and load it as an unpacked extension in developer mode.

Question 52

Where can I see what changed in each version?

Accepted Answer

The Changelog page on this website shows user-facing release notes. The GitHub repository has the full technical commit history for every change.

Question 53

Is there a beta or preview channel?

Accepted Answer

Not currently. All releases go through the standard store review process. You can follow the GitHub repository for early visibility into upcoming changes.

Question 54

Where is the source code?

Accepted Answer

The full repository is public on GitHub, including extension, backend, and website code. Anyone can review, fork, or contribute.

Question 55

What is the extension built with?

Accepted Answer

CQD uses the WebExtensions API (Manifest V3 for Chrome/Edge, V2 for Firefox). The content script runs on Google Classroom pages, and a background service worker handles download orchestration.

Question 56

Is CQD Manifest V3 compatible?

Accepted Answer

Yes. The Chrome and Edge versions use Manifest V3 with a service worker. The Firefox version uses V2 due to Firefox's MV3 adoption timeline. Both share the same core logic.

Question 57

How does the content script work?

Accepted Answer

The content script runs on Google Classroom pages, scans the DOM for downloadable attachments, and injects download buttons. It communicates with the background script via message passing for actual download triggering.

Question 58

What powers the backend?

Accepted Answer

CQD uses a Cloudflare Worker + Durable Object as the ingestion gateway, with a private managed data service for durable telemetry and public snapshots. The website is a SvelteKit static site deployed on Cloudflare Pages.

Question 59

How do I report a bug or request a feature?

Accepted Answer

Use the in-product feedback links or open an issue on GitHub with clear reproduction steps, browser name/version, and what you expected to happen.

Question 60

How can I report a security issue responsibly?

Accepted Answer

Follow the repository's security policy (SECURITY.md) and report privately through the documented security contact path instead of posting sensitive details publicly.

Question 61

Can I contribute to the project?

Accepted Answer

Absolutely. Pull requests, bug reports, feature suggestions, and even documentation improvements are welcome. Check the CONTRIBUTING guidelines in the repository.

Question 62

What license does CQD use?

Accepted Answer

Check the LICENSE file in the GitHub repository for the exact terms and conditions currently used by this release.

Question 63

How do I build the extension from source?

Accepted Answer

Clone the repository, install dependencies with npm/pnpm, and run the build script. Detailed build instructions are in the README. You can then load the built extension as an unpacked extension in developer mode.

Question 64

How is the extension tested?

Accepted Answer

CQD uses Vitest for unit and integration tests, with CI pipelines running on every pull request. The website and backend have their own comprehensive test suites as well.

Frequently Asked Questions

Basics

Installation & Browser Support

Privacy & Data

Download Behavior

For Students

Troubleshooting

Updates & Versioning

For Developers

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