Video Downloader Plus v4.0 is built on the Manifest V3 extension platform and supports all major Chromium-based desktop browsers.Documentation Index
Fetch the complete documentation index at: https://vidow.io/docs/llms.txt
Use this file to discover all available pages before exploring further.
Browser compatibility
| Browser | macOS | Windows | Linux | Status | Install |
|---|---|---|---|---|---|
| Google Chrome | Yes | Yes | Yes | Fully supported | Chrome Web Store |
| Microsoft Edge | Yes | Yes | Yes | Fully supported | Chrome Web Store or Edge Add-ons |
| Brave | Yes | Yes | Yes | Fully supported | Chrome Web Store |
| Mozilla Firefox | — | — | — | Coming soon | — |
Operating system support
- macOS — 10.15 Catalina and later
- Windows — Windows 10 and later
- Linux — Any distribution capable of running a supported Chromium-based browser
Mobile support
Browser extensions are a desktop-only technology. Video Downloader Plus cannot be installed on mobile browsers including iOS Safari, Chrome for Android, or any in-app browser. Mobile platform support is not currently planned.Minimum browser versions
Video Downloader Plus requires Manifest V3 support, which was introduced in these versions:- Chrome 88 or later
- Edge 88 or later
- Brave 1.20 or later
Language support
Video Downloader Plus is localized into 59 languages. The extension automatically matches your browser’s language setting — no manual selection required. Supported languages include: English, French, Arabic, Spanish, German, Portuguese, Chinese (Simplified), Japanese, Korean, Hindi, Russian, Italian, Dutch, Turkish, Polish, and 44 additional languages.Extension permissions
When you install Video Downloader Plus, the browser asks you to approve a set of permissions. Here is what each one is used for:| Permission | Purpose |
|---|---|
| tabs | Associate detected streams with the correct browser tab, update the detection badge when you switch tabs, and clean up stream data when a tab is closed |
| Network monitoring | Watch for video streams (HLS, DASH, MP4) as pages load by analyzing response types and URL patterns |
| Download rules | Manage reliable file saving and streaming player header routing |
| storage | Save your preferences, detected stream data for the current session, and authentication state locally on your device |
| downloads (optional) | Enable saving files through the browser’s download dialog with proper file names and folder routing — this permission is only requested when you turn on download management in settings |
| all_urls (host permission) | Detect video streams on any website — required because video content can be hosted on any domain, not just a fixed list of known platforms |
Page URLs may be sent to Video Downloader Plus servers on certain websites where network-level interception alone cannot identify streams. This is used exclusively for fallback stream detection.
Why Chromium only?
Video Downloader Plus relies on a set of browser APIs that are currently stable only in Chromium-based browsers:- Real-time network monitoring — Identify streams the moment they load on a page
- Declarative download rules — Reliable file saving that works across all sites
- Synced settings — Preferences that follow you across browser profiles and devices
- Background processing — Lightweight event-driven architecture that stays responsive without draining resources