Firefox is designed to let you choose your preferred home page and search engine and have that remembered ''permanently''. If it isn't sticking, we can help you track down the problem. (1) ''When does the change occur?'' For example: * Soon after changing it, without closing Firefox or adding any new extensions * Every time you exit Firefox and start it up again (between sessions) ** Do you have Advanced SystemCare or other security/utility software that protects against changed browser settings by rolling back changes between sessions? * Only when you shut down and restart Windows (between reboots) ** Do you have CCleaner or other security/utility software that cleans up browser data at startup? * Only when you update Firefox (2) ''Is anything else changing at the same time?'' For example: * Home page, new tab page pinned sites, or other settings? * History or cookies cleared unexpectedly?