Hi, Opened firefox today on my desktop pc and the open tabs at the top of FF just stroll to the right/end of my tabs as soon as i put the mouse over them to select one. try use left arrow or scroll wheel to go to the left and just immediately mouse over to click a particular tab and before can immediately scrolls back to the right/end. also have noticed when at the right of my open tabs mouse over any tab and whereas before would get the pop up showing the title of the page now just flashs the title up for a fraction of a second not even enought time to read it. plus now have tried to select from the drop down box in this ask your question dialog box but when click on down arrow to select the appropiate section just flases up the options for a fraction of a section giving no time to select one. Have found only way to select is to use the arrow keys on my keyboard thanks ian