How to Change the Icon to Your Chosen Icon in the Firefox Window and the Bookmarks Dialogue Window.
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You can change Firefox's default window icon to any icon you want, for example to internet explorer, by following these steps:
1. Go to the folder you installed Firefox in (It's usually this one: C:\Program Files\Mozilla Firefox\) and then go to the subfolder chrome.
2. While in chrome, create a new subfolder called icons, then go to that folder and create yet another subfolder called "default" The full path to this folder could be C:\Program Files\Mozilla Firefox\chrome\icons\default\.
3. Choose the icon you want to use (on Windows use .ico files) and then place it in this folder and rename it to main-window.[.ico], e.g. "main-window.ico" for Windows
In addition to the main window, you can also change the icon on the Bookmark Manager and JavaScript Console. The icon names are bookmark-window.[ext] and jsconsoleWindow.[ext], respectively.
After this is done, restart Firefox and you should be able to see your chosen icon in the title of the browser windows, and in the taskbar. I would suggest IconPackager to change the shortcut icons on the desktop or PC menu.
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Have fun, and post comments below for support.
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Make Firefox themed EXACTLY like Internet Explorer for Vista:
[link]
thanks
But great none the less.