Mozilla Monitor website will be down for 2 hours starting 5/20/2025 at 6 AM PT. Visit our status site for updates.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

can I empty my old f/f data files and folders there is 1.2 GB on my c disc

rockyonerocks
rockyonerocks

My old firefox data has 636 files plus 27 folders and take up 1.2GB on my hard disc. can I safely remove all of these.

My old firefox data has 636 files plus 27 folders and take up 1.2GB on my hard disc. can I safely remove all of these.

Chosen solution

Try clearing the cache, and see how much the 1.2 GB decreases. https://support.mozilla.org/en-US/kb/how-clear-firefox-cache

Read this answer in context 👍 1

All Replies (3)

the-edmeister
the-edmeister
  • Moderator

Chosen Solution

Try clearing the cache, and see how much the 1.2 GB decreases. https://support.mozilla.org/en-US/kb/how-clear-firefox-cache

cor-el
cor-el
  • Moderator

What is the location of these files?

Firefox uses two locations for the Firefox profile folder. Location used for the main profile in "AppData\Roaming".

  • C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\

Location used for the disk cache and other temporary files in "AppData\Local".

  • C:\Users\<user>\AppData\Local\Mozilla\Firefox\Profiles\<profile>\
jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor

If you mean an Old Firefox Data folder on your desktop, that contains your profile folder(s) as of the time you used the Refresh feature. If it has been more than 2 weeks and you haven't noticed anything important missing, then I don't think you have any further reason to keep that folder.