Every time i open Firefox my toolbar settings have reverted to the default basic toolbar settings. I then customise the toolbar adding several features such as the copy & paste buttons change buttons to show icons & text and tick the use small icons box. whilst using the browser all is fine. However the next time i reopen Firefox the customised settings are gone and just the basic default toolbar setting are there. I have no issues on my other computers but on my laptop i constantly have this issue. Settings on internet explorer are stable but my preference is firefox. what do i need to do.