Mister Download Manager by Ahmed Nefzaoui
Hands your browser's downloads to Mister Download Manager, the free and open-source download manager for Windows, macOS and Linux: faster, resumable multi-connection downloads and a Download video button. Needs the free app.
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About this extension
Mister Download Manager (MDM) is a free, open-source download manager (GPL-3.0) for Windows, Linux and macOS. This add-on connects Firefox to it.
What it does:
• Takes your downloads, before Firefox's "What should Firefox do with this file?" dialog: files of the types you choose in MDM go to MDM, with the page they came from and your sign-in for the site, so downloads behind a login still work. Hold Alt while clicking to leave one to Firefox.
• A Download video button over videos on any page, including HLS and DASH streams. Drag it along the video's edge, hide it on one video, or turn it off for a site.
• Media on this page: the toolbar button lists the streams, videos and sounds the page has loaded, with their qualities, length and size. One click sends any of them to MDM. Copy-protected (DRM) media is marked Protected and never sent.
• Right-click any link: Download with Mister Download Manager, Download selected links, Download all links.
• Works behind your VPN or proxy add-on. Turn on "Send downloads through this browser's proxy or VPN extension" in the toolbar button (Firefox asks you once to allow it), and MDM downloads through the same proxy as Firefox. Turning it off takes the permission back.
• Says why. When a download stays with Firefox, the toolbar button tells you which setting decided it (its file type, the site, its size), and how to change it.
• Your choice, per site. Pause taking downloads, or never take them from a given site, from the toolbar button.
• Send to another MDM. Pair the add-on with MDM running on a server or another computer on your network, and your downloads go there.
• Always shows whether Firefox reaches MDM, and how to fix it when it doesn't. Works in Firefox and browsers built on it, like Waterfox, LibreWolf, Floorp and Zen.
MDM downloads over several connections at once, resumes after a cut connection or a restart, and has a scheduler, queues, a speed limiter, torrents and video downloads.
Requires the free Mister Download Manager app: https://misterdownloadmanager.com
No ads, no analytics: nothing is sent anywhere except to MDM on your own computer, or to the MDM you paired it with.
What it does:
• Takes your downloads, before Firefox's "What should Firefox do with this file?" dialog: files of the types you choose in MDM go to MDM, with the page they came from and your sign-in for the site, so downloads behind a login still work. Hold Alt while clicking to leave one to Firefox.
• A Download video button over videos on any page, including HLS and DASH streams. Drag it along the video's edge, hide it on one video, or turn it off for a site.
• Media on this page: the toolbar button lists the streams, videos and sounds the page has loaded, with their qualities, length and size. One click sends any of them to MDM. Copy-protected (DRM) media is marked Protected and never sent.
• Right-click any link: Download with Mister Download Manager, Download selected links, Download all links.
• Works behind your VPN or proxy add-on. Turn on "Send downloads through this browser's proxy or VPN extension" in the toolbar button (Firefox asks you once to allow it), and MDM downloads through the same proxy as Firefox. Turning it off takes the permission back.
• Says why. When a download stays with Firefox, the toolbar button tells you which setting decided it (its file type, the site, its size), and how to change it.
• Your choice, per site. Pause taking downloads, or never take them from a given site, from the toolbar button.
• Send to another MDM. Pair the add-on with MDM running on a server or another computer on your network, and your downloads go there.
• Always shows whether Firefox reaches MDM, and how to fix it when it doesn't. Works in Firefox and browsers built on it, like Waterfox, LibreWolf, Floorp and Zen.
MDM downloads over several connections at once, resumes after a cut connection or a restart, and has a scheduler, queues, a speed limiter, torrents and video downloads.
Requires the free Mister Download Manager app: https://misterdownloadmanager.com
No ads, no analytics: nothing is sent anywhere except to MDM on your own computer, or to the MDM you paired it with.
Requires the free Mister Download Manager app ( https://misterdownloadmanager.com ), which this add-on talks to on your computer. Not for Firefox for Android. Problems or ideas: https://github.com/anefzaoui/misterdownloadmanager/issues
Rated 4.7 by 6 reviewers
Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Download files and read and modify the browser’s download history
- Access your data for all websites
Optional permissions:
- Control browser proxy settings
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.5.2
- Size
- 230.86 KB
- Last updated
- 3 days ago (Nov 9, 2026)
- Related Categories
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection