Clear cookies and site data in Firefox

Cookies are stored on your computer by websites you visit and contain information such as site preferences or login status. This article describes how to delete Firefox cookies, other site data and cached web content.

Clear cookies for the current website

This feature is available on a newer version of Firefox. Update Firefox to the latest release to use this new feature.
To delete cookies and site data for a website you're currently visiting:

  1. Click the Site Info Site Info button button at the left of the address bar.
    clear data 62 Fx63ClearDataSingleSite Fx65ClearDataSingleSite
  2. Click Clear Cookies and Site data.

Clear cookies for any website

To delete cookies for any single website:

  1. Click the menu button New Fx Menu Fx57Menu and select Options.Preferences.
  2. Select the Privacy & Security panel and go to the Cookies and Site Data section.
    Fx60Settings-CookiesAndSiteData Fx61settings-CookiesAndSiteData Fx63settings-AcceptCookies Fx65CookiesAndSiteData
  3. Click the Manage Data… button. The Manage Cookies and Site Data dialog will appear.
  4. In the Search websites field, type the name of the site whose cookies you want to remove. Items that match your search will be displayed.
    Fx60ManageCookiesAndSiteData-RemoveSelected Fx65ManageCookiesAndSiteData-RemoveSelected
    • To remove all cookies and storage data for the website, click Remove All Shown.
    • To remove selected items, select an entry and click Remove Selected.
  5. Click Save Changes.
  6. In the Removing Cookies and Site Data confirmation dialog that opens, click RemoveOK.
  7. Close the about:preferences page.

To learn more about managing site data in Firefox, see Manage local site storage settings.

Note: You can remove individual website cookies in Firefox version 60 and below, using the Page Info window Security tab View Cookies button. You can also use the Storage Inspector to remove individual cookies for a specific website, via the right-click context menu. To open the Storage Inspector, go to the menu button Fx57Menu Web Developer submenu or press Shift + F9 on the keyboard.

Clear all cookies, site data and cache

  1. Click the menu button New Fx Menu Fx57Menu and select Options.Preferences.
  2. Select the Privacy & Security panel and go to the Cookies and Site Data section.
  3. Click the Clear Data… button. The Clear Data dialog will appear.
    Fx64ClearCookies-SiteData-Cache Fx65CookiesAndSiteData-ClearData
    • Cookies and Site Data (to remove login status and site preferences) and Cached Web Content (to remove stored images, scripts and other cached content) should both be check marked.
  4. Click Clear.

Clear all cookies and keep other data

To delete only cookies while keeping other data, do the following:

  1. Click the menu button Fx57Menu and click Library (or click the Library button 57 library icon in the toolbar).
  2. Click History and then click Clear Recent History….
  3. Set Time range to clear: to Everything (if you don't see a list of history items, click the arrow next to Details to expand the list).
    Fx52ClearRecentHistory-Cookies Fx63ClearRecentHistory-Cookies
  4. Select Cookies and make sure that other items you want to keep are not selected.
  5. Click Clear Now to clear all cookies and close the Clear All History window.
// These fine people helped write this article:AliceWyman, Chris Ilias, Underpass, novica, Tonnes, smo, Michael Verdi, scoobidiver, Swarnava Sengupta, soucet, ideato, user832823, Lan, pollti, scootergrisen, Joni, Ömer Timur. You can help too - find out how.

Was this article helpful? Please wait...

Volunteer for Mozilla Support