Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More


more options

Why does Firefox store so much data locally on a machine? It is the only browser that I have found that does.

All Replies (1)

more options

Where is most of the storage? Open Properties of the following folders and find out (you need to view hidden items in Windows Explorer→View to access AppData). For me (Win 8.1, used for 5+ years), the distribution is as follows:

  • C:\Users\[USERNAME]\AppData\Roaming\Mozilla\ (mainly profile data & crash reports): 643 MB
  • C:\Users\[USERNAME]\AppData\Local\Mozilla\ (mainly temporary web cache): 1.09 GB
  • C:\Program Files\Mozilla Firefox (mainly the program's executable): 207 MB

None of those seem like much for a modern browser. I have barely used Chromium over the past few years so I cannot compare to others.

Athraithe ag Václav Trpišovský ar


Cuir ceist

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.