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make it a firefox start-up option.

then we can have these start-up options: 1)homepage;
2)blank page; 3)speed dial page; 4)last sessions

Это отзыв для предыдущей версии этого дополнения (0.4.1.1). 

Yes, that would be the most integrated solution. However, you can make it work by setting your homepage to Speed Dial (and start up with the homepage), or set Speed Dial to "open in blank new windows" and set the window to start with a blank page.