I had bought Logitech keyboard which has a InHdian currency symbol key. I installed the hotfix for indian keyboard from Microsoft support webpage so as to use the currency. It worked well with MS office. However, firefox simply refused to display the text that I typed in the address bar. It only showed some garbage. I tried changing the keyboard back to US, even then it gave me the same result. I had to uninstall the keyboard inorder to get firefox running. Very frustrating experience.