Firefox: Is there a way to view and set **all** site permissions like a global Page Info?

I am using librewolf, but I guess this extends to Firefox as well.

Is there a Settings page that acts sort of like the Page Info > Permissions page. but instead of it only pertaining to a specific website, it acts as a preference setting for all websites like in Settings > Privacy & Security > Permissions?

I went to a website that asked for HTML5 canvas image data and granted it for testing purposes, thinking I could remove it later in Settings. But I realized that the permission was not actually there, and I had to go back to the individual website and remove it.

As far as I’m aware there’s no way to do this in Firefox for permissions other than the 8 permissions listed under Settings > Privacy & Security > Permissions.