Getting "This is a privileged page, whose permissions cannot be configured."

[LacherMark]

I am receiving the message "This is a privileged page, whose permissions cannot be configured." Most of the time when I click on a link from Google ads

https://www.google.com/search?sxsrf=ALe ... ent=psy-ab

then I clicked on the link for one of the meters and received the following message.
Disabling NoScrip did not stop the message from happening,
However deleting the cache did fix the problem.
This issue keeps croping up.
Running Firefox 79.0 64 bit
NoScript Version 11.0.41

Thanks Mark

[barbaz]

Removed the email address. We don't give email support, but this being a public forum there are surely bad bots looking to harvest email addresses for spamming and other nefarious purposes.

Does this issue still happen with Firefox 80?

EDIT Just noticed this -

Disabling NoScrip did not stop the message from happening,

This makes no sense. How can you see this message from the NoScript popup if NoScript is disabled??

[garyf]

Sorry to interrupt, but to me, I only get this message "This is a privileged page, whose permissions cannot be configured" when I opened-up "Private Browsing" and tried clicking on the NoScript icon. I am on Firefox 80.0 and using NoScript 11.0.41. Other than that, this message does not appear when I started browsing to other websites and clicking on the NoScript icon to "Temporarily Trust" or "Revoke Temporary Permissions."

[barbaz]

Sorry to interrupt, but to me, I only get this message "This is a privileged page, whose permissions cannot be configured" when I opened-up "Private Browsing" and tried clicking on the NoScript icon. I am on Firefox 80.0 and using NoScript 11.0.41. Other than that, this message does not appear when I started browsing to other websites and clicking on the NoScript icon to "Temporarily Trust" or "Revoke Temporary Permissions."

That is expected behavior. The about:privatebrowsing page is indeed inaccessible to WebExtensions, by design.

[DanskerDave]

I am getting "This is a privileged page, whose permissions cannot be configured." on https://support.mozilla.org/
Why?
How can I turn it off?
Where?

[barbaz]

@DanskerDave: about:config > remove support.mozilla.org from extensions.webextensions.restrictedDomains