I am using multiple packages for various themes
default/hellowired, rwd/default etc.
The mobile site is being loaded from another package than the desktop package. Everything is working fine but when I merge the css, the css is not being applied in mozilla firefox browser only. The firebug shows Styles section blank with a message to create new rule. The same website with css merge is working fine in other browsers. I checked by viewing source, merged css files are loading fine in mozilla firefox. I have cleared the old merged css files from media/css/..
Please let me know the steps how can I identify the issue or if there any solution.