Are these frames overlays related to a specific action, such as accepting cookies or subscribing to a newsletter?

Note: Sometimes content blockers (ad blockers, cookie notice removers) will not completely clean off all of the elements used in generating an overlay.

Can you attach a screenshot?

• https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem
• use a compressed image type like PNG or JPG to save the screenshot