Something strange happening to me is that some sites see firefox as a mobile browser on ubuntu and force usage of their mobile interface with no option to switch to full view. They work well with chrome on ubuntu and firfox on windows.
So how can i solve this problem ?
Update:
Example site:
http://www.shorouknews.com (It's an Arabic news website)
My user agent string:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.12) Gecko/20101027 Ubuntu/10.10 (maverick) Firefox/3.6.12
Please note that the site works well on Chrome in ubuntu and Firfox on windows.