Once activated the pFavicon settings are available on every page and post. Existing pages and posts will not automatically assign a favicon, you are able to do this on the pages you wish to change.
When editing or creating a page or post the pFavicon settings will be near the settings for the featured image. On desktop this is generally the right side of the page, but on tablets and mobile this may be further down the page.
Updating a pfavicon
To attach an image, click the “Set favicon image” link to open the WordPress Media Picker. From here you should choose any PNG, JPG, JPEG, or GIF image you want to use as the favicon for the current page/post. The color settings relate to the Windows Mobile and Android platforms where you are able to set a color that will be used along with your icon. It is a good idea to set these to a color that
compliments the icon to maintain an appealing appearance.
You must save your changes or the favicon will not be assigned. The WordPress auto-save does not save your pfavicon choices, so it is important to remember to save your work.
Removing a pfavicon
To remove a favicon image you have assigned to the current page/post click the “Remove favicon image” link and save. The favicon will be removed from the post/page and all of the generated files will be removed from the server.
When you remove a pFavicon the page will receive the default favicon for your website again, and not the custom image you removed.
The WordPress auto-save does not save your pFavicon choice, so it is important to remember save your work.