Hi, You can consider the [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Reset Firefox] feature via '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information'''. (To revert to the previous profile, close the new profile, start Firefox and choose the '''*.default''' profile. While the [https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Profile Manager] is open, you can also delete the newly reset profile (the one containing random numbers)). [https://support.mozilla.org/en-US/kb/Managing-profiles Managing profiles] [https://support.mozilla.org/en-US/kb/Profiles?s=profile&r=2&e=sph&as=s Profiles Howto]

See these articles for some suggestions: *https://support.mozilla.org/kb/Firefox+has+just+updated+tab+shows+each+time+you+start+Firefox *https://support.mozilla.org/kb/How+to+set+the+home+page - Firefox supports multiple home pages separated by '|' symbols If you do not keep changes after a restart then see: *http://kb.mozillazine.org/Preferences_not_saved *https://support.mozilla.org/kb/Preferences+are+not+saved

Thanks to both of you for responding. I followed the instructions to reset Firefox, and it fixed the problem .

Glad we could help :)