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When accessing Outlook (https://outlook.office.com) using Firefox ESR version 128.9.0 and attempting to download a file attached to an email, the string 'UTF-8' is automatically inserted at the beginning of the file name, which is causing issues. This phenomenon does not occur with other browsers such as Edge or Chrome.

Is there a way to solve this problem?

Hello!

 Since some days I have the problem that all files I download from outlook are accompanied by a preceding UTF-8 in the file name. This is not the case for e.g. google chrome. Can I fix this problem by myself, or is it a general problem of firefox 128.9esr (64-bit)?

I have a problem with malware or downloading unwanted software. Prevent tracking and help prevent intruders from accessing my device. Firefox for Android Version 15

I downloaded a file from adobe.com and I cannot find it. I also can’t find a setting in firefox for downloaded files location. I searched the iPhone “files” app for ”pdf” and couldn’t find it. I performed the same action on Safari and the file instantly showed up in my downloads folder. Any ideas? iPhone 16 iOS 18.1.1 Firefox 134.1 Thank you Yaron

I want to change my download directory on the mobile app, I've tried the solution of this post, but it doesn't seem to be working anymore, I can't find any other solution

how do I download video download helper to my Firefox browser? I'm in a cul de sac in your website. There's no button to push to get the add on.

Please help thank you john

When I was previously using Firefox in Kubuntu 22.04, if I downloaded something I could go to the Downloads icon and click on the download and it would open in the desired application. After a failed upgrade to 24.04 I had to do a reinstall and now in Kubuntu 24.04, if I click on a downloaded file it will always bring up a window with "Open the file link with okular?" and the buttons Cancel and Open Link below. How do I go back to the previous way of it working?

Hello,

Can you please assist with the following download issue?

Firefox often, though not always, is very slow to download files, and when this occurs, I am unable to search by others tabs etc. I can download the same file using Edge on the same computer "instantaneously". Firefox returns to normal operation ~ 10 seconds after I cancel the download.

I unsuccessfully attempted to search for solutions.

Thanks and regards.

I can't download ANYTHING on Firefox I've been tempted to switch to Chrome again because of this like why can I not download I don't THINK I did anything wrong either and it's really becoming frustrating I'm sorry

Dear ,

Please help me when my file downloaded it seems extention is added to my file.

Ex: i downloaded a file name questionare.xlsx the output for the file is UTF-8questionare.xlsx

Please give me feedback and resolution for this issue. This just happend in April 17,2025.

Firefox for Android is my favorite, but its download manager is not that special, sometimes a file gets downloaded, but mostly the big files fail and do not get downloaded at all, I request you to make the firefox download manager even better like the download manager of Brave and Chrome browser.

I am trying to download videos from a site that I newly subscribed to. The videos do stream perfectly. The files do not download as video files and will not open at all. When I click on the download link, there is no recognition of a download happening and when I check my files later I have an "internet" file showing with a title but without a video file extension and nothing will open. The file extension is ".html". I am following the step by step instructions from the site involved. Other sites videos are downloading as expected.

Does firefox need to be my default browser? Any suggestions how to remedy this without losing what is working? Are there plug-ins that can address this issue?

Thanks.

Hello,

I'm using Firefox on Manjaro. Usually I'm using dolphin but I've installed nemo too for having a second option if dolphin doesn't work. But after installing nemo the file management software when opening the folder where the file downloaded switched to dolphin. Where can I change it back to dolphin?

Firefox Version: 135.0 (64-Bit)

System Information: Operating System: Manjaro Linux KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.1 Kernel Version: 6.12.11-1-MANJARO (64-bit) Graphics Platform: X11

Hello, We use the following code (in a Dockerfile) to download the latest Firefox for testing.

curl -fsSL -o /tmp/firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64&lang=en-US" && tar -C /tmp -xjf /tmp/firefox.tar.bz2 firefox

Starting with 135.0 the tar command fails with:

bzip2: (stdin) is not a bzip2 file.
tar: Child returned status 2
tar: Error is not recoverable: exiting now 

134.0.2 works: curl -fsSL -o /tmp/firefox.tar.bz2 "https://download.mozilla.org/?product=firefox-134.0.2....

A couple questions: - What has changed? Is there some other way we need to download and uncompress? - Is there any documentation of the supported query params for https://download.mozilla.org

Thanks, Paul