You could install it again afterwards, of course. Can you create a new profile in addition to the existing one and report back if you can download anything with that one? Reinstalling Firefox almost never fixes issues, since any responsible settings reside in a profile that will be reused automatically.
Also and perhaps first try choosing No proxy in Firefox's connection settings if anything else is currently selected to see if that helps. It is possible that security software anti-virus, firewall is causing the problem.
Try to disable security software temporarily to see if that makes a difference. Boot the computer in Windows Safe Mode with network support press F8 on the boot screen or hold down the Shift key to see if that has effect.
Unfortunately, none of these help me. I can download files with chrome just fine, but in firefox, every download fails no matter what I do. I tried installing an older version from 54 to 52 , with no luck. This download manager works separately from the browser. The browser tells it what to download, and off it goes.
You may be able to diagnose your download problem by following the steps given in the Troubleshoot and diagnose Firefox problems article. Based on information from Unable to save or download files mozillaZine KB. Grow and share your expertise with others.
Answer questions and improve our knowledge base. Search Support Search. Home Firefox Fix slowness, crashing, Firefox won't save What to do if you can't download or This article describes steps to take if you are unable to download or save files using Firefox.
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Firefox Reality Explore the web with the Firefox browser for virtual reality. Common Voice Donate your voice so the future of the web can hear everyone. Now your kids can find out what the fox says on a loop without you ever missing a beat… With this release, power users can use about:unloads to release system resources by manually unloading tabs without closing them. Plus, closing devtools now reclaims more memory than ever before.
Various security fixes. Developer Information. This article provides information about resolving the Couldn't be downloaded error that occurs when you try to download files by using Internet Explorer 9 or a later version. You cannot download files or view files from a website when you connect to the site over HTTPS secure sites by using Internet Explorer 9 or a later version.
For example, you visit a secure website such as a bank or other financial institution and try to download or view a PDF file. The file does not appear in Internet Explorer and you may see an error message similar to the following:. This problem occurs if the Do not save encrypted pages to disk option in Internet Explorer is selected.
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