Free Download Manager official extension

Free Download Manager integration with your Firefox browser

The Free Download Manager official extension for Firefox seamlessly integrates the powerful FDM app with your browser to enhance download speed and organization.

Designed by Free Download Manager developers, this add-on accelerates downloads up to 10 times, supports HTTP/HTTPS/FTP/BitTorrent protocols, and enables simultaneous downloading of multiple files. Users benefit from video and audio file preview capabilities, drag-and-drop link support, file conversion, and the ability to resume interrupted downloads. With its modern and user-friendly interface, FDM optimizes download management on Windows and macOS platforms.

Note: Requires Free Download Manager installed on your system for full functionality. Join the FDM community forum to report bugs or suggest features at FDM Forum.

Manifest V2 Add-on Utilities Productivity
By:
freedownloadmanager.org
Daily users:
87,910 -828
Rating:
4.11
(744)
3 new ratings
Version:
3.2.2 Last updated: 2025-05-14
Version code:
5943611
Creation date:
2018-04-17
Risk:
Very high risk impact Moderate risk likelihood
Permissions:
  • cookies
  • webRequest
  • webRequestBlocking
  • *://*/*
  • downloads
  • nativeMessaging
  • contextMenus
  • activeTab
  • storage
  • history
  • See more
Size:
325.73KB
Email:
su*****@freedownloadmanager.org
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
a day ago

Other platforms

Free Download Manager (v3.2.2)
2,000,000 4.20 (4,669)
Free Download Manager - FDM (v6.25.0.6016)
3,650,629 4.73 (45,681)

User reviews

Users appreciate the Free Download Manager official extension as a useful download tool within Firefox, noted for its integration and recommended use. However, multiple users report reliability issues including the extension frequently losing connection or not working on newer Firefox versions and Windows 11. Many downloads are missed or ignored, especially small files. The add-on mandates anonymous data collection which concerns users over privacy. Additionally, excessive CPU usage and inconsistent download capture reduce its effectiveness and user satisfaction.
Pros
  • Recommended by users as a good download manager.
  • Provides integration with Firefox for downloading files.
  • Allows some control over downloading options such as file size filtering.
Cons
  • Extension frequently stops working or loses connection on newer Firefox versions or Windows 11.
  • Does not capture all downloads reliably, missing about half of them.
  • Forces users to allow anonymous data collection to use the add-on, raising privacy concerns.
  • High CPU usage reported during operation, which impacts system performance.
  • Fails to detect or capture downloads of smaller files (under 1MB).
Recent reviews
by Fi*****, 2025-06-16

by AR*****, 2025-06-14

Stops working on newest FF versions. Extension losing connection with FDM till FF reloading or extension reenabling.
by Bl*****, 2025-06-14
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Free Download Manager official extension requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Free Download Manager official extension is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • Medium This extension was updated in the past 3 months. New updates may not be stable or safe.
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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Upgrade to see full risk analysis details

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