I have FireFox 26.0 which Tweaked a bit to increase my browsing speed, I changed Network. Pipping from 32 to 35, then introduced browser. Turbo. Boolean to true, since then my computer (Acer Aspire running on Windows 8) is freezing every time I start Firefox, I want to reset the browser to its defaults but the freezes are not allowing me to navigate the application, how do I solve this one? And why are these changes freezing my computer off every time I start the application?