Questo sito potrebbe offrire funzionalità limitate durante le operazioni di manutenzione per migliorare l'esperienza utente. Se un articolo non risolve il tuo problema e vuoi richiedere supporto, la nostra comunità di supporto è pronta ad aiutarti tramite @FirefoxSupport su Twitter e /r/firefox su Reddit.

Avatar for Username

Cerca nel supporto

Attenzione alle mail truffa. Mozilla non chiederà mai di chiamare o mandare messaggi a un numero di telefono o di inviare dati personali. Segnalare qualsiasi attività sospetta utilizzando l'opzione “Segnala abuso”.

Ulteriori informazioni

Questa discussione è archiviata. Inserire una nuova richiesta se occorre aiuto.

Can I delete old prefs.js files?

MIkeyLV
MIkeyLV
more options

I have a bunch of prefs-####.js files in my profile folder (as well as one prefs.js dated now). I'm not sure if I need all of these, as the knowledge base is not clear: " It only stores changes made to the defaults, after they are written back to disk. This normally occurs when you exit the Mozilla-based application."

This makes it sound as though each file only has changes, which would be silly for TB to have to go through all of these. And it seems it writes a new file every time it gets mail or I write mail.

I have a bunch of prefs-####.js files in my profile folder (as well as one prefs.js dated now). I'm not sure if I need all of these, as the knowledge base is not clear: " It only stores changes made to the defaults, after they are written back to disk. This normally occurs when you exit the Mozilla-based application." This makes it sound as though each file only has changes, which would be silly for TB to have to go through all of these. And it seems it writes a new file every time it gets mail or I write mail.

Tutte le risposte (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

If the prefs.js file is locked/unwriteable, then Firefox may save a copy with a number. However, as far as I know, that is for possible manual settings recovery, since at the next startup, Firefox is likely to re-use prefs.js again. As long as you have a healthy prefs.js now, you do not need the other ones.

I assume Thunderbird is similar to Firefox in this regard.