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The WindowsForum thread discusses a problem where Firefox fails to download files on a fresh Windows 11 23H2 installation, with users experiencing persistent download errors despite no network issues. Suggestions include checking for software conflicts, permissions, add-ons, and running troubleshooting tools like dev tools or procmon. The overall sentiment suggests that the issue may stem from software conflicts, extensions, or security settings, with potential solutions involving resetting Firefox and disabling extensions.
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SavorySilicon

Senior Member
Joined
Jan 28, 2020
Messages
120
Thread Author #1
Windows 11 23H2 fresh installation.
Firefox fresh installation.
Multiple Addons result in Download error.
Multiple common popular websites downloads result in download error.
No networking issues, internet very fast, consistant, no VPN. All Windows optional and required updates. 3 AV scan no viruses.
An image from 'Firefox does not download anything'. Error message stating 'Download failed. Please check your connection.' in red box.
 

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Neemobeer

Neemobeer

Windows Forum Team
Staff member
Joined
Jul 4, 2015
Messages
8,995
#2
I was able to reproduce the error, but only by disabling my internet. You can open dev tools and look for the error message and the associated action that failed.

Could be an extension, endpoint protection or some other unknown blocking the download. Could also run procmon and look for write errors to the extension location
 

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