sojweb

<ul>
<li>1.0.2: output tags as XHTML</li>
<li>1.0.1: fixes a path problem.</li>
</ul>
Just a real simple plugin to change the favicon for the admin pages; helpful if you’ve got a bunch of tabs open in Firefox (or some other browser that displays favicons in the tabs) so you can quickly see which tab is admin and which is not.
The WordPress icon is provided by default. To set your own, just copy it to the plugin folder.
Let me know of any problems: jj56@indiana.edu

SoJ Favicon

Just a real simple plugin to change the favicon for the admin pages; helpful if you've got a bunch of tabs open in Firefox so you can quickly see …

Harish Chouhan

Themeist Co

Custom Favicon lets you upload and manage favicons for your WordPress website, admin area, and login screen using the native media uploader. Unlike the built-in Site Icon feature, this plugin gives you full control — including support for separate frontend and backend icons, Apple touch icons, dark mode icons, and SVG format.
Features include: 
– Upload custom favicon for frontend (browser tab icon) 
– Upload separate favicon for WordPress Dashboard and login page 
– Upload Apple touch icons for iOS devices 
– Upload dark mode specific favicon 
– SVG favicon support 
– Option to disable default WordPress Site Icon output 
– Clean and simple settings page under Settings → Custom Favicon
This plugin is useful for: 
– Replacing the default WordPress favicon 
– Branding the WordPress dashboard for clients 
– Adding modern favicon features with minimal setup
Official plugin page: <a href="https://themeist.com/plugins/wordpress/custom-favicon/" rel="nofollow ugc">Custom Favicon on Themeist</a>
Need help? Ask in the <a href="https://wordpress.org/support/plugin/custom-favicon/" rel="ugc">Support Forum on WordPress.org</a>

Custom Favicon – Easily Add a Favicon in WordPress

works fine, thanks

Easily add a custom favicon and Apple touch icon to your WordPress site, including support for dark mode, SVG icons, and admin dashboard branding.

SoJ Favicon vs Custom Favicon – Easily Add a Favicon in WordPress