As I turned from 3.6.16 to 4.0, I always have following problems that I ask for help and appropriate solutions: * In Tools>Options>General I can not select ''Show windows & tabs from last time'' as it is gray lettered and blocked. It gives me options only for "Show my Home Page" and ''Show Blank Page''. On every restart of FF4 it opens me particular home page even if I changed it in previous session to some other Page or Blank Page. Also, I can not select ''Restore previous session'' from History. It is gray lettered and blocked as well. I have 8 very important pages that I need every time I browse on the internet not wanting to open each and every from the start. * Always when I open another page in a new tab within one particular web site unlike 3.6.16, FF4 shows me that page in default ie. small zoom even though I made it bigger in previous tab in that same web site. Being distant some 3 m from my 32" flat display all the letters are too small to read and it's too boring to enlarge them every time I open new tab. I have read all offered solutions in Help and Forum and tried them all even in about:config - everything the same. Hoping u could help me, grateful in advance!!!