I have used CCleaner on a windows 10 computer, and it cleared all the mail box from Thunderbird email application.
I learned that to avoid this problem, Thunderbird must be unchecked on CCleaner. I read on many forums that the mails were gone forever, however a I found some old data, and realize that I could recover the old e-mail messages.
Finally, I was able to recover the Thunderbird email box, by rewriting the content of the user profile's prefs.js, using Invalidprefs.js content.
I want to check the fackts about this problem and be completely sure of what have happened:
1- CCleaner reseted the user profile's prefs.js, messing with the e-mail data preferences.
2-The old e-mail messages data remains untouched, but cant be read, because of the reseted user preferences
Can someone confirm it please?