My homepage keeps reverting to "chrome://browser/locale/browser.properties" even if I manually edited "Homepage and new windows" in Firefox settings. Each manual modification lasts for several days, then all of a sudden when I launch the app, it reverts back to that "browser.properties" text file again. I guess this text file is meant for configuration or log, but I have no idea why this becomes the home page automatically. The "New tab" setting is not influenced. Only the "Homepage and new windows" will get changed. I do not have any extension that alters new tab or homepage function rightnow.