Flash Video Downloader
Overview
Flash Video Downloader helps you save videos you are already watching on supported websites. It combines network sniffing with on-page video detection, so you get a clean list of downloadable media instead of dozens of unrelated segment URLs.
The extension focuses on visible page videos, offers pause / resume / cancel during downloads, lets you choose where files are saved, and ships with 6 languages.
Free vs Pro
| Free | Pro |
|---|
| Detect, preview, pause / resume / cancel | Yes | Yes |
| Downloads every 2 hours | 1 | Unlimited |
| Concurrent downloads | 1 | 3 |
| Download history | Last 10 | Unlimited |
| Ads in the popup | Shown | None |
| Price | Free | EUR 10.99 one-time, lifetime |
Buy Pro on Ko-fi. After payment, copy the license key from the thank-you page, then either paste it into the front-page Pro card under Already have a license key? or open the extension → Settings → Pro → paste key → Activate.
Important: This extension does not bypass DRM. Sites such as YouTube, Netflix, Twitch, Disney+, and Spotify are blocked by design for Chrome Web Store compliance, as are TikTok, Instagram, Facebook, X, Hulu, Paramount+, Peacock and Crunchyroll (their terms forbid downloading). Copyright notices: [email protected].
Screenshots
Features
| Category | Details |
|---|
| Detection | Network sniffing + visible <video> scanning on the active tab |
| Formats | MP4, WEBM, FLV, MKV, MOV, AVI, M3U8, MPD, TS, MP3, and more |
| HLS / streams | Offscreen pipeline merges segments into a playable file (TS → MP4 remux via mux.js) |
| Download control | Pause, resume, cancel, and global active-download banner |
| Save location | Ask each time, or save all videos to a folder you pick on your computer |
| Languages | English, Svenska, Türkçe, Español, Français, العربية |
| History | Last 10 (Free) or unlimited (Pro), optional 24-hour auto-cleanup |
| Rate limits | Free: 1 download every 2 hours, 1 concurrent. Pro: unlimited, 3 concurrent |
| Pro | Optional EUR 10.99 lifetime license via Ko-fi |
| Ads | Free users see a small bundled "Sponsored" banner (an affiliate offer, or a house ad as fallback); Pro sees none |
| Privacy | On-demand content script injection · no analytics · no third-party code inside the extension · blocked-host list |
Download
⬇ Add Flash Video Downloader from the Chrome Web Store
- Open the store listing
- Click Add to Chrome
- Pin Flash Video Downloader to your toolbar
Installation from source
git clone https://github.com/nRn-World/FlashVideoDownloader.git
cd FlashVideoDownloader
For a clean build containing only the files that ship to the store (no screenshots or local dev files), run python prepare_local_test.py and select the generated local-test folder instead of the project root.
- Open
chrome://extensions/
- Enable Developer mode
- Click Load unpacked
- Select the project folder (or
local-test)
- Pin Flash Video Downloader to your toolbar
Do not test on chrome:// pages (including chrome://extensions). Open a normal website, play a video, then open the popup.
Update a local install
git pull origin main
Then click Reload on the extension card in chrome://extensions/.
On first run the welcome page opens with the legal notice, and the popup stays locked behind the Terms of Service until they
are accepted. The same check runs in background.js, so a download cannot start without an accepted record — see
terms-gate.js and section 1 of terms.html.
How to use
- Open a supported website and play the video you want to save.
- Click the extension icon.
- Press Refresh if the video does not appear immediately.
- Click Download.
- Use Pause, Resume, or Cancel from Active Downloads.
- Open Settings for language, download folder, history, and Pro.
Activate Pro
- Buy a license: ko-fi.com/s/72a48b875e (EUR 10.99, lifetime).
- Copy the key from the Ko-fi thank-you page.
- Paste the key either in the front-page Pro card (Already have a license key?) or in Settings → Pro, then press Activate.
All sales are final. The Pro licence is non-refundable and buyers are not entitled to compensation if the extension
stops working or is discontinued. The purchase button and the welcome page both carry this notice, and the full policy is
in terms.html.
Download location
- Default: Chrome asks where to save each video.
- Fixed folder: Disable “Ask where to save each video” and choose a folder. Later downloads go there automatically.
Supported formats
mp4, m4v, m4s, fmp4, webm, flv, f4v, m3u8, m3u, mpd, ts, m2ts, mts, mov, avi, mkv, ogv, 3gp, 3g2, wmv, mp3, m4a, aac, wav, ogg, opus, flac, plus blob: sources from in-page players.
以上为 README 的开头部分。其余内容请阅读原文。 查看完整 README ↗
