MINI

C:/Users/siak_kaltara/AppData/Roaming/Mozilla/Firefox/Profiles/w6ftfy7h.default/

files >> C:/Users/siak_kaltara/AppData/Roaming/Mozilla/Firefox/Profiles/w6ftfy7h.default/xulstore.json

 {"chrome://browser/content/browser.xul":{"navigator-toolbox":{"iconsize":"small"},"main-window":{"width":"960","height":"735","screenX":"160","screenY":"175","sizemode":"maximized"},"titlebar-placeholder-on-menubar-for-caption-buttons":{"width":"53"},"titlebar-placeholder-on-TabsToolbar-for-captions-buttons":{"width":"53"}}}