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Everytime i try to download an image, firefox gives a 0b file and fails the download after a while. I have tried saving the images from opening them in a new tab and still hasn't worked. Build #2016164375 - android 14

I've file download feature in my web application. When polling of file percentages is complete i am sending file to the client (browser) But in fire fox it downloading an .html file instead of actual file. Whereas in chrome it working as expected.

Around May 7th or 8th, Canvas, the web-based learning management system was hacked. I don't know the nature of the data breach but Canvas was offline for a while. My college's IT department gave the all-clear to use Canvas shortly after it came back online, but I can no longer receive any of the file data from what I try to download off Canvas, it just gives me an empty file with 0KB of data. I cannot find anywhere in the settings to whitelist Canvas so that I can receive file data.

Is there any user-side solution to this, or does Mozilla need to be the ones to fix this? This is impeding my ability to do class work on Firefox, and I have to switch to a different browser to open the PDFs that my professors post on Canvas. I mainly use Firefox for iOS, but I have classmates who said they are experiencing the same problem with the Windows version of Firefox.

Trying to download Firefox.com. Screen states “ your download was interrupted “ No explanation why or what to do to allow download to succeed?

Using the Firefox 151.0 Mozilla Firefox for Fedora. Updated as of 23 May 2026, I use just a generic FireFox. I don't customize it, I just use it as it comes from the Fedora distribution.

I cannot save images (right click menu "Save Image As"). Nothing happens when that is selected. This worked a couple weeks ago.

Downloads are supposed to go to ~/Downloads. Checking the setting for this, Go to the three-line menu > Settings > General > Files and Applications, under Downloads, the "Save files to" value is set to Downloads, but the Browse button does not work to reset it. Nothing happens when I poke on the button. I can select the text in the box, but I can't change it.

I found the help page for "What to do if you can't download or save files https://support.mozilla.org/en-US/kb/cant-download-or-save-files and went thru every one of the steps there. None of them make any difference.

Strangely enough, there isn't even a "Downloads button" in the top toolbar. If I right click on the top toolbar and select "Customize Toolbar" it shows a downloads icon as already being in the toolbar, but when I click Done, it goes away.

Hi-

In the past week or so, I suddenly stopped being able to download/save files or upload files from Firefox. I get a message that says something like "You don't have permission to open this file". This happens regardless of the location of the file (ie locally on the device, a USB drive, a server drive, one drive etc.).

This happens on two different workstations, one is Windows 11 and one is Windows 10 but both use the same Windows login.

If I try a different browser, I am able to save or upload so I don't think it is a network permissions issue.

In some regions, the offline translation language packs fail to download properly in Firefox. Users are unable to complete the download, which prevents the translation feature from working offline. Please look into potential regional network restrictions or server accessibility issues. Thank you.

I'm unable to download any of my Intel updates. I've turned everything off that I know could be blocking it and authorized Intel as a safe download. I don't know what else I can do please help. Google states that I should be able to go to the shield and the address bar and turn off the enhanced tracking protection however it will not allow. I've gone to the settings page and set it to custom as well as clear all check marks in that setting. Still nothing will not allow me to download my updates for my Intel drivers. Please help

Hello. I have a question regarding a problem with exporting files in Firefox. For about four days now, when I try to export files in Firefox, it fails. I've looked into it, but haven't been able to find a solution. Could you please give me some advice? I've tried various things within my capabilities, but nothing has worked. Firefox 150.0.1 64bit

Mac Tahoe 26.4. Any attempt to download or upload results in a file chooser/picker/browser panel that shows part of the finder interface but not all. Can't interact with it besides switching between sidebar items, no files visible, can't close or exit this window, can't interact with anything else. The only active button on the top of the window is the fullscreen button. Have to force quit firefox every time.

I tried troubleshoot mode and it did nothing. There is a workaround for some download links where I can open them in another tab and they automatically download without opening the window. Drag and drop options seem to work for uploads when they're available.

I took screenshots and was going to attach them, but this problem prevents me from doing that. This browser's sorta bricked for me at the moment.