somehow i found old firefox history and files and when i tried re-add a profile history got ERASED!!!!!!!! is there a way to get history back?????? (files are from 2017)

updated: i found a corruption file of places.sqlite so how do i fix it?????

Note that for the history you need places.sqlite. This file stores bookmarks and history, using this file gives you also the bookmarks from this file, so you lose your current bookmarks.

You can look at this NirSoft utility to inspect history:

• https://www.nirsoft.net/utils/browsing_history_view.html