You may check the filenames as well to verify that. The Windows version is offered as a setup version or portable version, and both can be used, as both are free of sponsored content. The download page lists downloads for Windows, Mac OS and Linux, and all are free from any bundled additions. All you need to do is point your browser to the following URL instead: However, there is a better option as the project maintains copies of the client version that are adware free. It is not possible to run the installer until the file is allowed by an administrator of the system by loading Windows Security from Start, selecting the App:FileZilla_BundleInstaller threat under Virus & Threat protection, and setting it to 'allow on device'. The threat 'App:FileZilla_BundleInstaller' is listed with a low severity rating when the file has been scanned by Defender. If you download the client anyway using that option, you may get a Windows Defender warning about potentially unwanted software. Text on the page highlights this: 'This installer may include bundled offers.

The main download page offers a download for Windows only this particular version includes a bundled offer, aka adware. The maintainers of the application have released FileZilla Pro, a commercial version with features that add support for WebDAV and several file storage services such as Google Drive, Box, Dropbox, and Microsoft OneDrive.

The application was selected for the European Union's bug bounty program among other software applications.

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