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Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

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New User

Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Everytime I try to download a "large" file Firefox keeps asking me:

Firefox needs your consent to download large files. Please click ALLOW to continue your transfer.

If you cannot see the request, please click on the icon next to the address bar.


I didn't have this kind of troubles before until the new version, I'm so frustrated that I'm really thinking to switch to Chrome instead.

And in case someone wonders, there isn't a request icon at ALL.

1 ACCEPTED SOLUTION

Accepted Solutions
New User

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Pls check out the following article dealing with this topic, well worth reading imo:

http://www.ghacks.net/2013/07/08/fix-firefox-needs-your-consent-to-download-large-files-on-mega-mess...

87 REPLIES
Site Moderator

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Firefox doesn't ask for such a confirmation.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.


Do a malware check with some malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.

Make sure that you update each program to get the latest version of their databases before doing a scan.

You can also do a check for a rootkit infection with TDSSKiller.

See also:

New User

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Of course it does, the pop up even shows the Firefox logo. Besides that...

I just strip clean the hard drive and did a complete format on it so I'm working inside a brand new environment, it has nothing but the antivirus and the Firefox browser so no spybot, rookit or else, unless they came with the new firefox version installer.

The browser it's at the default theme, no add-ons, hardware accelerators or anything else for that matter. Its the vanilla version.

Safe mode doesn't help either.

Site Moderator

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Can you attach a screenshot?

Use a compressed image type like PNG or JPG to save the screenshot.

New User

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

The pop-up comes with some graphic instructions about where to "Allow" the download, but that option is non existent, oh and now, every time I write something at the search bar some kind of DOS windows pop up and vanish in less than a second.

Is there a way to install the old version? and where can i find it?

Thanks in advance

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New User

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Any news on this or should I stick to Chrome?

Site Moderator

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

The Firefox logo is only meant to identify which program needs this confirmation.
Firefox would do this in this way, but would use other ways.

I can't think of any reason for Firefox doing this or you may have set some quota setting in Windows.

Did you try to boot Windows in Safe Mode?

SUMO Contributor

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

That's an overlay from the page trying to convince you to allow an unusually large amount of site-specific data storage. I've never seen this request from any other sites, so I don't know what is the justification for it. Maybe it's their installer technology??? I think it would make sense to ask the site what it's for since you do not normally need to allow local data storage in order to just download a file.

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New User

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

Mega use indexdb to store the files. What you are actually doing is transferring the data from Mega to your local system in indexdb. That requires (on Firefox) permission from the user if it's more than 50MB.

Firefox does this to prevent malicious sites from using up all your disk space.

SUMO Contributor

Re: Can't download files because Firefox keeps asking for consent and there isn't an ALLOW button anywhere

If you do not have the blue-circle-question-mark icon, you might have chosen the "Never for This Site" option at one point. This prevents Firefox from prompting you to allow in the future.

I couldn't find a way just to clear that one decision without clearing all settings and history for the site using the "Forget about this site" feature. Someone might know a shortcut that allows you to preserve history and perhaps more importantly for this site, past files downloaded to local storage.

If you don't find another way, open the Library dialog to your History using either

  • History > Show All History
  • Ctrl+Shift+h

Then right-click an entry for that site and choose Forget About This Site. Do not be alarmed if this takes a minute or two, since Firefox is going through history and cache to clear all references to the site. Your next visit will be as though it were your first.

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