Yesterday I reinstalled windows and installed Firefox dev-edition. when I signed in sync , everything was fine... I saw all my bookmarks and history, addons were installed too... then I installed kmp player and as I later discovered he brought some unwanted apps like "yandex, iwebar and their company"... that i discovered today, when i went trouble with internet connection... so i uninstalled that apps and than restored system to yesterday ... internet come back... but when i reinstalled Firefox and signed in sync , there was nothing... i tried many ways... installing different versions, creating new profile did nothing... is possible to get back my sync history or it has gone away already ? please help me...