Diễn đàn hỗ trợ Firefox

Hello, I am having trouble to have my Firefox desktop 128.8.0esr retain my choices on how to handle the various file types it downloads - save, ask or open with a corresponding MS Office application (broad sense).

No problem to reach or configure each type available, e.g. 'Microsoft Word Document >> Always Ask', my issue is that my settings DO NOT get permanently stored, so if I restart Firefox, everything defaults back to standard choices. This is affecting exclusively all choices from 'Applications' list; the radio button option right below on 'what to do with other files' is being respected [surviving Firefox restart] accordingly.

This issue has been around on previous versions as well, I was hoping that next revisions might solve the problem however still frustrated on this particular matter. Have also seen the article https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file and specifically at 'Changing Download Actions' my issue can be described as its item [5. Close Settings page. Changes will automatically be saved] is not working at all.

My 'prefs.js' file is not read-only, I have just K-Now extension installed and I already tried to issue an installation refresh, however problem persists. Thanks to advise on what to do.

Even though the custom folder for "downloads" has been set firefox keeps creating new one in the home folder. Nothing I've tried to do helped. From the bug reports I see this problem exists in the firefox at least for 15 years! I can't believe it is still not fixed. That's kind of behavior minor enough for the developers to take care of and major enough for the users to give up and switch browsers if it is not fixed. Crazy.

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)?

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.

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.

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, 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

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

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

I have set up a preferred download location in Settings and also ticked the "Always ask you where to save files" box, so for every download, the default location comes up in the download screen.

However, I regularly want to download a number of files in succession to the same non-default location and it is a pain to set it up each time. Is there any way to get Firefox to remember the last location used to save a file and offer it each time (at least in each session) for downloads?

I'm running Firefox 135.01 (64-bit) on Windows 11.

Many thanks.

Mike