Firefox history is mainly stored within SQLite databases located in the Firefox profile folder. Browser History Examiner is a forensic software tool for extracting and viewing the Firefox SQLite databases.
The guys who answered this Question before me gave a great insight, i applaud them for the great amount of information offered. Thus i want to add few things : 1. Check Google - My Activity : https://myactivity.google.com : 2. 1. It does have all How to Delete Google Search History on Android, iPhone and Jun 06, 2020 Google | History & Facts | Britannica
Google data centers - Wikipedia
Jun 06, 2020 Google | History & Facts | Britannica Google, American search engine company, founded in 1998 by Sergey Brin and Larry Page, that is a subsidiary of the holding company Alphabet Inc. More than 70 percent of worldwide online search requests are handled by Google, placing it at the heart of most Internet users’ experience. Learn more about Google.
How to manage location history stored in Google Account
Access Browsing History in Google Chrome the Easy Way Jul 05, 2017 Your data in Search - Google You're signed out, which means Search isn't saving any data to a Google Account. Learn about your signed-out Search activity and discover how this data makes Google services work better for you. Where Are Google Chrome Bookmarks Stored? May 30, 2020