I reccomend installed "NoScript!" (https://addons.mozilla.org/en-US/firefox/addon/722
) and more importantly:
Click on the Pardus Icon >
Keyboard Shortcuts >
Under Global Shortcuts Scroll Down To "Miscellaneous" >
Create a Shortcut >
^ Pressing the shortcut now a black skull with two cross bones will appear, clicking on the malfunctioning application with end it in a instant (its like Task Manager in Vista but far more powerful), this will prevent your entire system from crushing.