So I'm reading people are loving the new TenFourFox, Firefox 4 custom made for PPCs on Tiger, except for one nagging issue. They don't like the icon. I know. Some people are very particular about this. I don't know what to say. It's not the ugliest icon I've ever seen. That award goes to the original icon for Phoenix Slides. In fact, I kind of like it. It has a certain kind of whimsy.
But being that people shouldn't have a stupid icon separating themselves from probably the most valuable piece of software you can run on Tiger, here's a quick tutorial on changing it. This will also apply to changing the icon to any other application.
Step 1) Choose the image file you want to use. Here's a sample png you can download. It's the Firefox globe without the tasty critter:
Step 2) If your image file isn't already in .icns format, you need to convert it using img2icns.app (link goes to the Tiger version). It's very simple, just drag and drop. You should now have your .icns file.
Step 3) Right+click or control+click on TenFourFox.app and choose "Show Package Contents." Go into Contents --> Resources, and there you will find a file called firefox.icns. Rename it something like firefox-old.icns, then name your replacement icon firefox.icns and move it into the same folder.
Step 4) Close everything and start up Firefox (if you already had it in your dock, you should remove it first). You should see your new icon.