This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

Thread ini telah diarkib. Sila tanya soalan baru jika anda perlu bantuan.

Where does Firefox keep cached DNS responses?

  • 2 balasan
  • 1 ada masalah ini
  • 7246 paparan
  • Balasan terakhir oleh rlhouser

rlhouser
rlhouser
more options

I am running Firefox ESR 60.4.0. I have noticed that if I load a page, close the browser, reopen the browser and load the same page, duplicate DNS queries are sent, even at intervals less than the TTL or default cache expiration period. This behavior does not appear to be affected whether or not I change my privacy settings to clear the history when the browser closes. I am trying to understand if this repetition is normal, and where (if anywhere) in the file system the Firefox DNS cache is stored.

I am running Firefox ESR 60.4.0. I have noticed that if I load a page, close the browser, reopen the browser and load the same page, duplicate DNS queries are sent, even at intervals less than the TTL or default cache expiration period. This behavior does not appear to be affected whether or not I change my privacy settings to clear the history when the browser closes. I am trying to understand if this repetition is normal, and where (if anywhere) in the file system the Firefox DNS cache is stored.

Penyelesaian terpilih

hi rlhouser, firefox is keeping resolved dns entries in memory only (you can access them by typing "about:networking#dns" into the address bar). there is no dns cache on disk - as a result it's expected that no recollection is kept after a browser restart.

Baca jawapan ini dalam konteks 👍 1

All Replies (2)

philipp
philipp
  • Moderator
more options

Penyelesaian Terpilih

hi rlhouser, firefox is keeping resolved dns entries in memory only (you can access them by typing "about:networking#dns" into the address bar). there is no dns cache on disk - as a result it's expected that no recollection is kept after a browser restart.

rlhouser
rlhouser Pemilik Soalan
more options

Thank you.