How can I fix this error? The bookmarks and history system will not functional because one of the files of Firefox is used by another application.

I tried many solutions being posted in the support forum. I went and deleted my places.sqlite file so that it has created a new profile. I tried to restore my favorites, and nothing happened.
I went and found out that I had a places.sqlite.corrupt file. As suggested by one of links provided in other articles, I removed the other places.sqlite files and then renamed just corrupt as places.sqlite. I restarted firefox and still nothing.

Please do not just copy and paste the links to two articles that helped me not yet. I need to know how to solve this problem, because I had a lot of important information in my favorites!

You should not copy places.sqlite, if you had problems with the history or bookmarks.

You need to restore from a backup bookmarks JSON in the bookmarkbackups folder has all of your bookmarks.

Tags: Firefox

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