Video DownloadHelper on Mozilla Firefox (Linux Ubuntu 16.04 LTS)

[Alex]

After installing the latest version of Mozilla Firefox, when you start the Video DownloadHelper, an error occurred: "Forbidden request header name". How can I fix it?

[mig]

What version of Firefox and Video DownloadHelper are you using exactly ?

[Alex]

I'm  using Mozilla Firefox v. 58.0 (64-bit) and Video DownloadHelper v. 7.1.2

[mig]

No one else  reported this error (yet ?) and VDH7.1.2/Firefox 58.0 is currently deployed over about 2 million computers.

Can you give more details, including screenshots of the error ?

[R@t0N]

Same here...maybe the problem comes from the vpn or the webRTC leak shield??

[R@t0N]

Guess I got it... I just disabled the Vpn, the webRTC shield AND THE FREE DOWNLOAD MANAGER. The extension now is working juuuust fine. ;)

[mig]

Any chance you could disable those features separately so we would know which one was causing the problem ?

[Alex]

Since writing the last comment, it's even worse - if I try to download a video, in a new window appeared a message (screenshot 1) with a proposition to install the update. But all attempts to download this update is failure - loading is stops at the beginning. VPN is not installed on my system.
 How to be in this situation?

[mig]

Sorry Alex, but why don't you just follow the instructions and update to the required coapp version or give details on why you cannot do so ?

[Alex]

As I wrote in the previous message, I can not update to the required coapp because the download does not end. I made more than one attempt, but the download stops.

[mig]

The coapp install file is linked from https://www.downloadhelper.net/coapp-install but hosted on github.com a very popular and reliable site. The problem is not to be searched on the server side.

If you cannot download a ~30MB binary file, i guess you must have plenty other issues when using your browser. Maybe it is time to run diagnostics on your machine.

[Alex]

It's not that my computer has broken down, because with other sites, the servers are loading normally. And I have no other problems - neither with the browser, not with the computer. But I already decided the problem - downloaded another application for downloading files.

[mig]

Happy to read you have finally been able to download an application from the Web.

[Alex]

I already wrote above - with your application stopped downloading the content of only one site. so do not be rude and behave in a boorish way. I hope that I just seemed.

[mig]

I didn't mean to be rude.

But your last comment "your application stopped downloading the content of only one site" now makes me wonder what your problem was:

1/ you were not able to download the coapp from https://www.downloadhelper.net/install-coapp/

2/ you were not able to use the add-on + coapp to download a video

[Alex]

All of your assumptions were correct:
1 / I could not download coapp from https://www.downloadhelper.net/install-coapp/

2 / I was not able to use the add-in + coapp to download the video.
I just tried it on your link again and I did it !!!
Many thanks to you both for the application and for the fact that you have not refused to help! I wish you every success! Now I can use it again as I used to. It is simple and convenient.

[mig]

Happy to read this !

[Alex]

Oops, I'm sorry, but the error is: "Download error. Forbidden request header name "appeared again ... What should I do to make it disappear?

[mig]

Where do you get this error exactly (a screenshot might help) ? Downloading what video ? With browser or coapp (if you are given the choice) ?

[Alex]

Now there was another error. Screenshot in the attachment.

[mig]

That's a network error. VDH cannot do much more than reporting this error to the user.