Fix trash icon on Addons, fix checkboxes positions on Prefs, fix New Task on menu, more fixes for Preferences on Calendar and other Preferncess.
See userPrefs.css for more info!!!
userPrefs.css need import on omni.ja/chrome/classic/skin/classic/messenger/shared/preferences/preferences.css: @*import url("chrome://messenger/skin/shared/userPrefs.css");
userAddons.css need import on omni.ja/chrome/toolkit/content/mozapps/extensions/aboutaddons.css: @import url("chrome://messenger/skin/shared/userAddons.css");*/