How can I keep unwanted tabpages (such as an advertising webpage for 'videodownloader' or something) from popping up when I start up Firefox?
How can I keep unwanted tabpages (such as an advertising webpage for 'videodownloader' or something) from popping up when I start up Firefox?
How can I keep unwanted tabpages (such as an advertising webpage for 'videodownloader' or something) from popping up when I start up Firefox?