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Yes we know and by we you must mean Mozilla. Unfortunately Mozilla is not doing this. There is a slight glitch for some users and this does happen. Also happens when the Yahoo Toolbar is installed. Please check Programs and Features to see if it is installed. If so you can remove it there. Please : Create a new profile as a test to check if your current profile is causing the problem. See Creating a profile : *https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles *http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem. Never work with original files. *https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data *https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox Please let us know if this solved your issue or if need further assistance.

What Firefox locale do you have as Mozilla went back to using Google as default search engine in the U.S., Canada, Hong Kong and Taiwan from Firefox 56.0 and on. https://blog.mozilla.org/blog/2017/11/14/firefox-features-google-as-default-search-provider-in-the-u-s-canada-hong-kong-and-taiwan/ The reason is mentioned in https://blog.mozilla.org/blog/2017/12/05/mozilla-files-cross-complaint-against-yahoo-holdings-and-oath/