Hi All,
Like the title says. All downloads fail (with a download failed message from FF) while browsing with FF. I am running XP/FF v 37.0.1 and Avast v 2015.10.2.2015
I reinstalled Avast and FF to no avail. FF installed a new version and this also did not help. This behaviors is new. Disabling Avast allows normal downloads.
No problems with Firefox 36.0.4 and avast! free 2015 10.2.2215. I have yet to update to Firefox 37.0.1, just about to do that now and see if that makes any difference.
Are you using a download manager ?
OK, have now got the same FF version as you and have done a test download of the avast free installation file. This downloaded without error.
If you can expand on how it is that you go about your downloads ?
It’s Avast Free on XP Pro 32 bit. No download manager. No additional security software and no previous security software. This behavior is new but how new I’m not sure. I don’t download much stuff.
By downloads I mean clicking any link to a download a file or any type by HTTP or FTP. I get no Avast warning. The download starts and then FF immediately shows it as “failed”. As an example I just tried to download a graphics driver from the HP Website but it could be anything from anywhere or any size (or extension .zip, .exe. whatever). Below are the results.
You may find the following video helpful:
https://youtu.be/RBj-wakXF8Y
I already installed it once as I stated in my first post. I did not the Avast removal tool since it uninstalled w/o any problems. Are you suggesting the removal tool may fix something that the first new install did not?
Yep.
OK. I’ll try it.
OK, report back.
To all.
I am experiencing this behavior since FF 35.1 and Avast 2015.10.0.2208. Believe me I have tried everything without success. Any file bigger than a few MB failes to download. Even, sometimes, you see it is downloading but at the end it says " Failed ".
To Evangelist can read it here:
https://forum.avast.com/index.php?topic=165557.msg1179377#msg1179377
What I do is to try again but with FF just with the download window opened ( close FF browser ) see images
Of course I can also do it with IE if all else fail.
Hi Hernan,
No problems with the ccleaner download from File Hippo.
What are your download settings in the firefox options ?
Did you look at the following topic ???
https://forum.avast.com/index.php?topic=169047.0
I just went through this and solved it with a clean install. 
About what essexboy asked me to do is irrelevant since I did not have my system compromised. It was just some disk error in the event log. BTW I still have them and they are related to the RAID driver.
I really don’t think is Avast since I have disabled FSS and WS and some of the downloads I’ve tried failed anyways. Unless Avast has to be completely uninstalled. I have not tried it like that yet. BTW IE never fails any download, I’ve tried.
Choose where to download, but I have also tried to save automatically to the download folder. I have tried the FF support page for failed download, and everything seems in order.
Yes Bob. I have cleaned istall FF and Avast. FF 35.1, 36 and 37.1 also Avast 0.2208 and 2.2215. Like I told DavidR went through FF support page and nothing. All is right but no downloads.
This really is a conundrum because all seems right. Although jim14 said that disabling Avast ( I imagine he is talking about the shields ), he is able to download files that has not been my case. Keep in mind that small downloads like docs, txts, or images smaller than 1-2 MB are successful, and 10-20 % of the time the bigger files do not fail.
As you mentioned RAID, it would be worth a support ticket, imo. 