Scripts
Scripts not already included in the .autoconfig folder are not necessarily incompatible. If you run into a script that you'd like included with FF Ultima, feel free to recommend it on the Github.
CSS
For all CSS related to a specific script. I recommend isolating the code to protect css that is script related or not. This can easily be done with the themes ultima.enable.js.config setting. All code in the theme related to custom scripting can be accessed by having this setting on. And all of this code will be found in chrome/theme/ffu-special-configs.css for organization.
When writing your own personal css for the theme, I recommend also wrapping it inside this preference so that it doesn't conflict with a non-scripting environment.
@media -moz-pref("ultima.enable.js.config") {
"css related to your scripts"
}
Note: This is only a recommendation. And applies for code that already exist in the FF Ultima source.
Scripts
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