Much time ago, when I was using firefox 3.5/4 (I do not remember exactly), I installed a Theme/Persona of Green Flower (I do not remember the exact name). I liked that theme so I kept it for a long time. But after some days when I wanted to change it, it did not change. The problem is still continuing. I am currently using Firefox 9.0. I have no such Add-on or Extension installed which could prevent Firefox from changing the Theme/Persona. I have described below what happens exactly: .I browse over Personas .I select one or two and install them .Finally I Enable one for use .It gets enabled and the Persona is activated .It is enabled till current session is on .But on the next startup of Firefox, its gone! .It doesnt show up! .All I am left with, is this Green Flower Theme/Persona! .Please help me to change it, I am fed up seeing this White and Green Firefox .Even updating Firefox doesnt help! .What shall I do?