Introduction This is a Firefox add-on to work with iframe and frame tags:

Indicate if the current web page uses iframe and frame tags by changing the colour of the add-on icon.
Scroll the window to the elements with tags and highlight them with a red border.
Redirection. A list of sites where the add-on will apply a redirection automatically to the first iframe/frame source can be configured.

The meaning of the icon's colours is:

Gray icon: the website cannot be checked.
Green icon: no tag iframe or frame detected.
Orange icon: tag detected.
Purple icon: tag detected and at least one source matches with any term in the configured user's list of special sources to notify.

Documentation Please, read the docs to know how to configure the add-on, work with it and more information: https://cmoli.es/projects/check-iframe/introduction.html GitHub https://github.com/carlosamolina/checkiframe