Multithread Download Manager Optimized

Name: Multithread Download Manager Optimized
Rating: 3 (1 reviews)
Author: Comss

By: Comss

Download manager with multithreaded support.

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Features & Capabilities

This is a new fork of Multithreaded Download Manager by jingyu9575: https://addons.mozilla.org/en-US/firefox/addon/multithreaded-download-manager/ This fork focuses on stability, download integrity, and compatibility with modern Firefox builds. It improves handling of large files, adds safer fallback behavior for problematic servers, reduces memory pressure during chunk processing, and introduces adaptive threading to prevent stalled or corrupted downloads. It also improves resilience against range/content-length mismatches, adds smarter host-based single-thread fallbacks (including SourceForge-like hosts), and includes practical compatibility hardening for Firefox Nightly-related API edge cases.

User Growth & Download Statistics

Add-on

By:

Comss

Daily users:

Rating:

3.00

(1)

Version:

3.5.2 Last updated: 2026-03-09

Version code:

6175897

Creation date:

2026-02-21

Risk:

Permissions:

Size:

229.91KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-04

Compare stats and ranking:

Ranking

# 30,742 ▼ 45

Other rankings

#28 in optimize keyword 18 ▼ 3

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Comss

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/mdm-optimized/

User Reviews

Where's the link for the souce code?

by Fi*****, 2026-03-13

View all user reviews ›

Is Multithread Download Manager Optimized Safe?

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.

Multithread Download Manager Optimized requires some sensitive permissions that could impact your browser and data security. 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 Add-ons Store, 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.

Multithread Download Manager Optimized may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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