Compare Revisions

settings

Cookies and site data are stored on your computer by websites you visit. Learn how to block websites from storing this data in Firefox.

Websites you visit store [[Cookies - Information that websites store on your computer|cookies]] and other site data on your computer. The stored data contains information such as site preferences and login status. This article describes how to block websites from storing this data in Firefox. *See [[Where are my logins stored?]] to learn more about website logins. __TOC__ =Block cookies or persistent storage for a single website= You can use the [[Firefox Page Info window|Page Info window]] to set Firefox to block cookies or stored data from one website: {for not fx88} #Go to the website you wish to block from setting cookies or storing site data in Firefox. #{for win,linux}[[T: ContextMenu]] within the page and select {menu View Page Info}.{/for}{for mac}In the Menu bar, click {menu Tools} and select {menu Page Info} from the drop-down menu.{/for} #In the Page Info window, select the {menu Permissions} panel. #Underneath '''Set Cookies''' or underneath '''Store Data in Persistent Storage''', remove the check mark from '''Use Default'''. #Change the setting to '''Block'''. #;[[Image:Fx78PageInfo-BlockCookiesSiteData]] #Close the Page Info window. {/for} {for fx88}<!--https://bugzilla.mozilla.org/show_bug.cgi?id=1692553--> #Go to the website you wish to block from setting cookies or storing site data in Firefox. #{for win,linux} If the [[Restore the Menu bar in Firefox|Menu bar is enabled]],{/for}{for mac}In the Menu bar,{/for} click {menu Tools} and select {menu Page Info} from the drop-down menu.{for win,linux}<br>Alternatively, click the padlock {for not fx89}[[Image:Fx70GreyPadlock]]{/for}{for fx89}[[Image:Fx89Padlock]]{/for} to the left of the web page address, click the right arrow > in the [[Site Information panel|Site Information]] drop-down panel and then click the {button More Information} button in the next panel.{/for} #In the Page Info window, select the {menu Permissions} panel. #Underneath '''Set Cookies''' or underneath '''Store Data in Persistent Storage''', remove the check mark from '''Use Default'''. #Change the setting to '''Block'''. #;[[Image:Fx78PageInfo-BlockCookiesSiteData]] #Close the Page Info window. {/for} You will need to remove any cookies or site data that the website has already set in Firefox. For instructions, see [[Delete cookies to remove the information websites have stored on your computer]]. =Block cookies and site data for more than one website= If you have more than one website you want to block, using the [[Firefox Page Info window|Page Info window]] for each site can be time-consuming. You can block individual websites from setting cookies and storing site data, as follows: #[[Template:optionspreferences]] #Select the {menu Privacy & Security} panel and go to the '''Cookies and Site Data''' section. #;{for not fx79}[[Image:Fx68CookiesAndSiteData]]{/for}{for fx79}[[Image:Fx79CookiesAndSiteData]]{/for} #Click {for not fx79}{button Manage Permissions…}{/for}{for fx79}{button Manage Exceptions…}{/for}. The ''Exceptions - Cookies and Site Data'' dialog box will open. #;[[Image:Fx65CookiesAndSiteData-ManagePermissions]] #Type in the exact address of the site you want to block. #Click {button Block}. #Click {button Save Changes} to finish. To remove cookies that were stored previously, see [[Clear cookies and site data in Firefox]]. =Viewing a list of blocked sites= To see a list of sites that you have blocked from setting cookies and storing site data: #[[T:optionspreferences]] #Select the {menu Privacy & Security} panel and go to the '''Cookies and Site Data''' section. #Click {for not fx79}{button Manage Permissions…}{/for}{for fx79}{button Manage Exceptions…}{/for}. The ''Exceptions - Cookies and Site Data'' dialog box that opens will show you which sites you have blocked from storing cookies. =Block cookies for all sites= To set Firefox to block cookies from all websites: #[[Template:optionspreferences]] #Select the {menu Privacy & Security} panel. #In the [[Enhanced Tracking Protection in Firefox for desktop|Enhanced Tracking Protection]] section, select '''Custom''' and check mark '''Cookies'''. #;{for not fx86}[[Image:Fx78ETPcustom-cookies]]{/for}{for fx86}[[Image:Fx86ETPcustom-cookies]]{/for} #Use the drop-down menu to choose the type of cookies to block. '''Warning!''' Some sites will not work properly with all cookies blocked. #[[T:closeOptionsPreferences]] For more information about third-party cookies, see [[Third-party cookies and Firefox tracking protection]]. To remove cookies that were stored previously, see [[Clear cookies and site data in Firefox]].