Causes Error on Youtube Rated 3 out of 5 stars

I agree with the last 3 reviews that DownloadHelper is now causing problems with youtube, whereby errors are generated when posting comments or adding videos to playlists. I also agree that there needs to be an easy way to disable this extension (ie by clicking a button on the taskbar) so that it's easy to troubleshoot when these issues begin. I've had to completely disable DownloadHelper because of this now, which I would preferred not to have done, as re-enabling it to determine whether the issue is fixed is now not a simple button-click. Other than this, tho, amazing work. I will upgrade my rating to 5 once the bug has been fixed. Many thanks!

This review is for a previous version of the add-on (4.9.14.1-signed). 

Workaround

We have a workaround for this issue and we need your help to verify it does not break other things in YouTube. Please check: http://bugzilla.downloadhelper.net:8080/show_bug.cgi?id=518