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samedi 11 octobre 2025

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JDownloader 2 optional software offers-free installer

Below you can find our optional software offers-free installation packags.
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Download with JDownloader

Miniature de la vidéo de l'article
Miniature de la vidéo de l'article

Présentation

Intègre le navigateur avec JDownloader en interrompant le gestionnaire de téléchargement ou via le menu contextuel du clic droit.

This extension connects your browser to the JDownloader, which is a Java-based download manager. The extension offers two operation modes: 1. Sends downloading jobs from the right-click context menu 2. Interrupts the built-in download manager and redirects your requests to the JDownloader The second mode is disabled by default. To enable it, click on the browser action button once. Whenever the interruption mode is not needed, click the browser action button one more time to disable this optional feature. Since this extension needs to execute native commands to communicate with the JDownloader, a native client is needed. The instruction to install this NodeJS native client is shown on the first use. Also note that this extension only calls the JDownloader, so you need to have this application on your operating system for this extension to work. You can check the code of the native client on https://github.com/belaviyo/native-client/releases. There is a short video tutorial about the installation of the native client and its usage: https://www.youtube.com/watch?v=vSnZp2wflTc Logs: Version 0.1.6 1. Fixes tab's name is not being sent to JDownloader Version 0.1.7 1. Download all Links with JDownloader

As a community, we aim to provide useful feedback to the developers of open-source projects in order to help them fix bugs and improve the user experience. By sharing your thoughts and experiences with us through this feedback form, you can help us identify any issues with the extension and contribute to the well-being of the community. We appreciate your valuable input and the time you take to fill out the form.

Extension Details

Name*  Version 

Reason for Removing

Does this add-on have performance issue(s)
Does this add-on have a user experience issue(s)
Have you tried to reach the developer for support
Does this add-on have a trust or information access issue(s)

Extra Comments

Please provide more details why you have uninstalled this add-on. This will help the developer fix the listed issues

Get Response from the developer

If you would like to get notified of the reported bug fixes or would like to get in contact with the developer regarding these bug reports please add your email address here
Email: 

Guideline

  • User Experience: Creating a user interface that pleases all users can be a challenging task. Improving the user experience of this extension is largely dependent on feedback from users like you. If you have any comments or suggestions regarding the user interface or other ways to improve the user experience, please fill out this section to help the developer address any issues and make the extension even better.
  • Performance: If you have experienced any performance issues with this extension, such as slow browsing or excessive resource usage, we would appreciate it if you could let us know by filling out this section of the feedback form. Reporting these types of issues is crucial, as they can affect the experience of all users. Our technical team will carefully review the extension for any issues and work with the developer to address them as a priority. Thank you for your help in improving the extension for everyone.
  • Trust and information access: Unnecessary permissions in an extension's permission list can be off-putting to users and may cause them to uninstall the extension without fully trying it out. At WebExtension.ORG, we regularly monitor hosted extensions to ensure that they do not request any extra permissions, but some mandatory permissions may still appear unnecessary. By providing feedback, you can help the developer determine whether a particular permission is truly necessary or provide a clear explanation for its inclusion. It's important to note that some permission requests in Chrome can be misleading. For example, most extensions require the "storage" permission to save their internal preferences, but the warning message may imply that the extension wants to access your personal information (which is not the case).

Alternatives

You can check our extensions gallery to find alternative extensions. Or alternatively you can add a comment in the discussion section of the extension's FAQs page to get recommendation by other active users. Also based on your browser you can check the official extension stores to find alternatives:

  • Chrome WebStore: a marketplace where users can browse and download applications, extensions, and themes for the Google Chrome web browser. It offers a wide range of apps and add-ons for various purposes, such as productivity, entertainment, and social media
  • Edge add-ons: a marketplace where users can browse and download add-ons for the Microsoft Edge web browser
  • Firefox add-ons: a marketplace where users can browse and download extensions, themes, and other add-ons for the Mozilla Firefox web browser
  • Opera add-ons: offers a range of tools and services for various purposes, such as productivity, entertainment, and social media for the Opera web browser.

Where do Browsers Store Extension Files?

They store installed browser extensions in the user's local profile folder. This is a hidden folder that is not easily accessible to users, as it is intended to store data and settings for the browser and its extensions. The location of a user's local profile folder varies depending on the operating system and the user's account settings. Here are the default locations of the local profile folder on some common operating systems:

  • Windows: C:\Users\<username>\
  • Mac: /Users/<username>/
  • Linux: /home/<username>/
external download manager
The "Download with an External Download Manager" extensions enable the redirection of browser downloads to an external download manager, such as Internet Download Manager (IDM). By default, these extensions are disabled and do not interfere with downloads. You must first enable the extension using the action button to redirect downloads. Once enabled, you can proceed with the usual downloading process and observe that the external executable is called instead of the browser's built-in download manager. You can also use the right-click context menu to send your downloads to an external download manager without enabling the interruption mode. For each download manager, there is a separate options page that contains the corresponding command-line arguments.


Features

  • The extension will call an external download manager when it is active from the action button
  • Disabling the extension will not impact performance
  • No additional steps are necessary to activate an external job
  • The extension supports assigning jobs via the context menu without activation
  • Load requested features from GitHub

FAQs

  1. Which external download managers are supported?

  2. recommended "Mute Tab" extension for ChromeFirefox, and Edge browsers.

    Take full control over noisy tabs by having a browser popup to mute and unmute the active tab, all background tabs in the current window, all background tabs in all other windows, and all background tabs altogether. This keyboard-friendly extension offers shortcuts for all these actions. Read more here.

  3. What is the "Download with Internet Download Manager (IDM)" extension, and how does it work?

    The "Download with Internet Download Manager (IDM)" extension allows users to send downloading jobs to the IDM download manager (known for its fast downloading speeds on Windows OS). Enable the extension from the action button to use it in the interruption mode, then proceed with the usual download process. Your downloads will be directed to IDM once your browser resolves the link. Please note that you need to install a minimal native client for this extension to send links to an external executable. The native client is required for the extension to communicate with your operating system.

    Here is a short video tutorial on how to setup the extension: https://www.youtube.com/watch?v=IXNV2qlO5Ow

  4. What is "Download with JDownloader" extension and how does it work?

    The JDownloader is a cross-platform download manager that is Java-based. This extension integrates the JDownloader with your browser. Similar to other "Download with X" extensions, this extension operates in two modes. The first mode is the interruption mode (aggressive mode). To use this mode, click the action button to enable the download observer and proceed with downloading the file as usual. Once the browser initiates a download, the extension pauses the built-in download manager and sends the resolved link to the JDownloader. The second mode is the nonaggressive mode. In this mode, there is a right-click context menu over links. Clicking on this item will send the link to the JDownloader. In this method, the external download manager is responsible for resolving the actual downloading link.

    Note that this extension uses the HTTP protocol to send download links to the JDownloader application (per JDownloader documentation). Please ensure that http://127.0.0.1:9666/ is accessible.

    Additionally, note that JDownloader supports cookies. By default, the extension does not send cookies to JDownloader. If the downloading server requires cookies to allow downloading, enable this feature on the options page.

    Here is a short video tutorial on how to setup the extension: https://www.youtube.com/watch?v=vSnZp2wflTc

  5. What is "Download with Download Accelerator Plus (DAP)" extension and how does it work?

    The DAP download manager is a well-known download manager known for its speed improvement. Like other "Download with X" extensions, there are two methods to send downloads to DAP. The recommended method is to use the right-click context menu, but you can also activate the action button (toolbar button).

    Please note that DAP uses an HTTP server to communicate with other applications. It uses the 10029 port to receive messages from other executables. Please ensure that http://127.0.0.1:10029 is accessible.

    It is important to note that this extension only serves as a connector that redirects downloads to DAP. It is not the actual downloader. Therefore, you need to install the DAP download manager on your operating system for the extension to work.

  6. What is "Download with Wget" extension and how does it work?

    This extension allows you to redirect all your downloading jobs to Wget, a powerful command-line download manager. You can activate the extension from the action button or selectively send downloading jobs to Wget from the right-click context menu.

    Please note that Wget supports cookies. If you want to allow the extension to pass cookies to Wget, enable this feature on the options page.

    It is important to note that Wget is a command-line downloader. This extension opens a new terminal, then starts the Wget downloader, allowing you to monitor the progress. The terminal application used depends on your operating system. For example, on Windows, "cmd.exe" is used. You can change the terminal application from the options page.

  7. What is the difference between sending jobs from right-click context menu and activating the toolbar button?

    When sending a job from the right-click context menu, only the link and referrer (and cookies, if supported by the download manager) are sent to the download manager, whereas activating the toolbar button waits for the browser to resolve the final URL and filename. The extension then pauses the downloading job. The external download manager then receives the resolved URL, as well as the referrer and cookies. While the second method is more reliable, the first method is recommended as it is less aggressive. If starting a job from the right-click context menu does not work, temporarily activate the action button and proceed as usual to send the job to the external download manager. Once the job is submitted, turn the action button off again.

  8. What is the purpose of the native client, and why is it necessary for some browser extensions to work?

    The native client acts as a bridge between browser extensions and external executables, which allows them to communicate with each other. This bridge is necessary because browser extensions are limited to the browser and do not have direct access to system-level APIs (to prevent abuse). The native client, a small application that understands the browser's communication language, allows commands from the extension to any external executable. For certain extensions, such as those used for downloading, a native client facilitates communication with the external download manager. The native client used by these extensions is a minimal NodeJS client (the native client's code is in JavaScript language).

  9. How can I install the native client?

    Native client is hosted on https://github.com/belaviyo/native-client/releases. Based on your operating system, select a native host and download it into a local directory. Now extract the content and run the "installer" script. If for any reason you have decided to remove the native integration, you can use the "uninstaller" script. This script will remove all the required generated files and registries from your operating system. There are two video tutorials you can follow as a guide:

    Please note that the native client does not require administrator permission to work.

  10. How does the "Download with X" integration differ from the integration provided by external download managers?

    External download managers often have browser integration, which is usually very aggressive and cannot be easily disabled. On the other hand, "Download with X" extensions offer per-user-request integration, allowing users to enable or disable the integration as needed. Additionally, "Download with X" extensions use a non-persistent background, meaning they do not consume system resources while inactive.

  11. How can I use a "Download with X" extension?

    There is a short video tutorial on how to use these tools below this FAQ. Basically, you need to follow this list:

    • Download the actual external downloader application from the official provider website (for instance if you want to download with IDM, you will need to have IDM in your operation system. This add-on is just the connector, not the actual downloader!)
    • Install the proper "Download with X" add-on
    • Open any website with links
    • Right-click on a link and select the context menu item
    • You will be redirected to a new page providing instruction on how to install a small native client (browser to native-side connector)
    • Once the native client is installed, click on the "Check Connection" button to make sure native integration works fine.
    • That's it!

    There are two methods for sending your downloads to an external download manager. The first is to right-click on a link and select the context menu item. The second is to turn on the action button and begin a download by left-clicking the downloadable link as usual. Once the browser resolves the link, the extension pauses the downloading job, and instead, it sends the link to your external download manager.

  12. Why does the download behavior differ between Chrome and Firefox with the extension? In Chrome, the download goes straight to the download manager, while in Firefox, it starts to save in the browser as well as with the extension.

    The reason for the difference in behavior between Chrome and Firefox is that Firefox currently does not support the downloads.onDeterminingFilename API. Once this API is supported, the download behavior in Firefox will be the same as in Chrome. In the meantime, it is recommended to use the right-click context menu to send download jobs to the external download manager.

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A test page to evaluate how well your browser is connected to an external download manager. This page contains different downloadable links with different types. For advance use, this page also included a single MP4 video file with no extension to evaluate automatic mime-type detection in case it is not provided by a server.

This page contains a list of sample files to test your browser extension download capabilities of handling different formats. It includes image, audio, video, document, and compressed files. There is a sample file with no file extension and binary mime type to test file extension detection using the "magic bytes" method. In this method, the download manager should detect the correct mime type and file extension based on the binary content that is retrieved from the server. In this method, the file extension that is returned by the server is ignored. Some operating systems such as Linux and Mac OS use the "magic bytes" technique to detect the file extensions, and the provided file extensions in the filename are completely ignored. However, in Windows OS, the operating system relies on the extension that is appended to the filename. There is no "magic bytes" verification.

This page also can be used to see how well a download manager can detect different types. For instance, you can ask your browser's download manager helper extension to collect all the possible download links and extract their file types.

Here is a list of recommended arguments to be passed to some well-known download managers. You can use this section to modify how your browser extension communicates with the external download manager. Also, these arguments can be used in other extensions that use native messaging to send commands to an external application like "External Application Button" by "Andy Portment"

DownloaderCommand-line Arguments
Download Accelerator Plus (DAP)No command-line options. Uses POST requests to "http://127.0.0.1:10029"
Free Download Manager (FDM)"[URL]"

Full command-line list: [-fs] [-url=]url1 [-url=]url2 ... where "-fs" can be used to enter to the silent mode.
FlashGet"[URL]"
Internet Download Manager (IDM)/d "[URL]"

Full command-line list: /d URL [/p local_path] [/f local_file_name] [/q] [/h][/n] [/a] where "/s" argument adds the new job to the scheduler. "/p" sets the path to the location where download saves to the local disk. To set the local filename which overwrites the detection module use "/f" with the suggested filename in front. If you prefer to exit the download manager when file is fetched, use "/q" argument.
JDownloaderNo command-line options. Uses POST requests to "http://127.0.0.1:9666/flashgot"

For complete list of communication commands take a look at jdownloader.org/knowledge/wiki/terminal
GNU WGet/C 'start cmd.exe "/S /K ""%ProgramFiles(x86)%\\GnuWin32\\bin\\wget.exe" --output-document="[FILENAME]" --user-agent="[USERAGENT]" --referer="[REFERRER]" --no-check-certificate --continue --load-cookies=[COOKIES] "[URL]"""'

For complete list of arguments take a look at gnu.org/software/wget/manual

Default installation path: this list contains the default installation path. If for any reason, you have used a custom path during installation, make sure to set the custom path on the options page of the helper extension.

DownloaderPath
Download Accelerator Plus (DAP)%ProgramFiles(x86)%\\DAP\\DAP.exe
Free Download Manager (FDM)%ProgramFiles%\\Softdeluxe\\Free Download Manager\\fdm.exe
FlashGet%ProgramFiles(x86)%\\FlashGet\\flashget.exe
Internet Download Manager (IDM)%ProgramFiles(x86)%\\Internet Download Manager\\IDMan.exe
JDownloader%LocalAppData%\\JDownloader 2.0\\JDownloader2.exe