Grabline Connect by Zain
The browser companion for Grabline, the free download manager: right-click download, hover buttons with a quality picker, grab all links or images on a page, and a per-tab list of sniffed streams. All downloading happens in the desktop app.
Extension Metadata
About this extension
Grabline Connect pairs your browser with Grabline, the free and open-source download manager (AGPL-3.0). The extension is deliberately thin — it detects and delivers, the desktop app downloads:
On sites the Smart Engine knows (YouTube and 1000+ more), the app opens a quality panel: 4K → 144p, MP3/M4A extraction, subtitles, and clip trimming. Everywhere else you get segmented, resumable, multi-connection downloading.
Requires the free Grabline desktop app (Windows/macOS/Linux): https://github.com/Gr33nOps/Grabline — the extension talks to it over Native Messaging only. No account, no cloud, no telemetry, no ads.
Grabline does not bypass DRM or logins.
- Right-click → "Download with Grabline" on any link, image, video, or page
- Hover ⬇ button on videos, audio, and large images
- Per-tab media list: every stream (.m3u8/.mpd) and media file the page loaded
- Download all images on a page into a selection grid
- Optional download takeover
On sites the Smart Engine knows (YouTube and 1000+ more), the app opens a quality panel: 4K → 144p, MP3/M4A extraction, subtitles, and clip trimming. Everywhere else you get segmented, resumable, multi-connection downloading.
Requires the free Grabline desktop app (Windows/macOS/Linux): https://github.com/Gr33nOps/Grabline — the extension talks to it over Native Messaging only. No account, no cloud, no telemetry, no ads.
Grabline does not bypass DRM or logins.
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Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Download files and read and modify the browser’s download history
- Access browser tabs
- Access your data for all websites
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.20.9
- Size
- 47.73 KB
- Last updated
- 2 hours ago (Jul 18, 2026)
- Related Categories
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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