I can no longer download files with either Waterfox or Firefox. I disabled UBlock Origin as a test, but it made no difference. It still fails in the downloads list. The last file to download successfully was 27 September. Since this I have removed firewalld and installed ufw, but it did not help. What else can I try?
I would try wget and the url to confirm if it will work.
Just to make sure it is not something with your Internet
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It’s not the Internet because it is only on one computer. wget
sudo wget https://clonezilla.org/downloads/download.php?branch=stable
[sudo] password for michael:
--2023-10-08 20:46:18-- https://clonezilla.org/downloads/download.php?branch=stable
Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt'
Resolving clonezilla.org (clonezilla.org)... 64.90.44.245
Connecting to clonezilla.org (clonezilla.org)|64.90.44.245|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 16072 (16K) [text/html]
Saving to: ‘download.php?branch=stable’
download.php?branch=st 100%[==========================>] 15.70K --.-KB/s in 0.1s
2023-10-08 20:46:19 (150 KB/s) - ‘download.php?branch=stable’ saved [16072/16072]
hm, you are able to browser obviously otherwise you wouldn’t be here.
so, it is just with downloads.
Are you using proxy in your browser ?
Have you tried a clean profile in Firefox ?
Can you try these steps?
https://support.mozilla.org/en-US/kb/cant-download-or-save-files
In the meanwhile, I’ll check if I can find something else to try
Edit: Did you try to save the file in another location ?
If the suggestions above don’t work, try this one:
I appreciate your efforts.
Here is the summary of a rkhunter. Clamav will run all night.
System checks summary
=====================
File properties checks...
Required commands check failed
Files checked: 123
Suspect files: 4
Rootkit checks...
Rootkits checked : 438
Possible rootkits: 1
Applications checks...
All checks skipped
The system checks took: 4 minutes and 34 seconds
All results have been written to the log file: /var/log/rkhunter.log
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter.log)
Hope it helps because I’m almost without coins to through at the lake hehe
Ok
when responding to you the first thing I found was the same FF checklist that mcury found.
my first take was 'I wonder if the downloads folder got changed or needs reset?
no coincidence FF and Waterfox got hosed…gotta be an update.
short version: you never said if you went through all the Firefox-reccomended steps that mcury furnished?
PS–I run ClamAV once a year for kicks. Always the same: 2,000 bad things. 1,996 belong to LibreOffice. The other are 4 pups or benign. Clam has always been nothing but false-positives for me over the years. good luck.
I do agree about false positives–that why I don’t run Clamscan these days.
I don’t know yet, as clamscan is still running, so I will let you know if it ever finishes.
@anon49550872 thank you so much for your suggestions and research. Unfortunately, I am now running out of usual suspects. I even restored a snapshot prior to this issue, and it still will not download from any browser, which leads me to think the rkhunter log may have found 2 rootkit, but does not name them. How to investigate that further?
rkhunter report.
System checks summary
=====================
File properties checks...
Required commands check failed
Files checked: 123
Suspect files: 3
Rootkit checks...
Rootkits checked : 438
Possible rootkits: 2
Applications checks...
All checks skipped
Should I just reformat?
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Those could be false positives, it won’t be easy to identify them if we can’t get more info about it.
I would say that, personally, if I have a backup of everything the safest approach would be a format/OS reinstall.
I really can’t tell but that doesn’t seem to me related to the Firefox problem but could be, really don’t know…
A reinstall is quick, backup your user.js file from Firefox, your important files, download the latest .ISO and go ahead if that can make you feel more comfortable… I would do it.
Rootkit with ClamAV? 
Hello rick, kindly help us here, I’m not used to run clamav in my systems
No silly 
rootkit detected by rkhunter.
clamav sees all kinds of false positives.
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Perhaps it is better to let someone else answer these questions about Clamav and rkhunter because I’m not experienced with it, so don’t take the format/reinstall suggestion so serious ok ? ehhe
Maybe its better to wait a little bit for help from other users…
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I just think ClamAV can mess up your system. I don’t use it.
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A few years ago, I used to scan some directories only, torrent files and that was it.
Not the entire system. But there is so long that I don’t use that I really don’t remember.
Oh, found the file that I was using at that time:
cd /
find /mnt/myuser/ext4/torrent -type f -print0 | xargs -0 -P $(nproc) clamscan
Never tried rkhunter.
It’s a first time for me too, so I’m not sure what to make of the /etc/rkhunter.log
good backups of data is my #1 rule, so reformat is my preferred option.
I will leave the thread open for now, in case someone adds better suggestions that members in future can benefit from.