After the latest update for firefox, now when I start firefox up I keep getting a pop up window that is a Java Script Application that says TypeError:Components.classes['@softage.ru/skype/skypeFfExtension;1']is undefined.

After closing this Firefox seems to work fine but this happens everytime on startup. How can I get rid of this pop up window starting everytime? Can I re-install firefox? Would I lose my bookmarks etc?

Once I disabled my Ask.com toolbar (that was installed when I installed FoxIt), the error went away.

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