Had the same issue as the guy below. Worked great for a while, no ads, ad vault got filled up fast.

Then all of a sudden today the setup screen opened again and all my stuff was unchecked, the ad vault was empty and I had two AdNauseam icons when opening Youtube, with one of them not working at all. Removed and reinstalled and that seems to have fixed it.

Had issue on Firefox 55.03 64-bit portable, Windows 10. Also have Disconnect and Youtube Plus installed.

So far, I have not been disappointed with AdNauseam. It works fine, I don't visit many sites with much ads, but I have not had a problem with it, period. I don't get much ads, and overall, it's been a good rides.

After watching a youtube video though, when I got out of fullscreen, I was immediately pulled into an AdNauseam tab. Additionally, there was two AdNauseam icons on my add-ons, one unconfigured, the other showing an error, saying it had been deleted when I tried to click on it.

Very bizarre.

Error message is:

"File not found

Firefox can’t find the file at chrome:///content/menu.html.

Check the file name for capitalization or other typing errors.
Check to see if the file was moved, renamed or deleted.
"

EDIT:

OS used: Windows 10
Browser: Firefox 55.0.3
I was watching a video on youtube, on fullscreen. Unfortunately, I can't link the specific video right now, I'm on mobile.

Thank you for the quick response!