Hello when I minimize my firefox 25 window by clicking on the icon in the taskbar, it vanishes into a background process. this has only happened since i updated to win 8.1. with win 8.0, i did not observe this behavior. I do not find the missing window under "recently closed tabs" or in the history. I cannot access it by clicking the icon in the taskbar again. If, however, I click a bookmark of one of the tabs which are open in the vanished window, it opens again with all the tabs active. This behavior makes it nearly impossible to reasonably work with firefox. Any help would be appreciated. Thank you.