Some websites have the ability to store information, such as files, in your local storage, and these files can only be removed manually by you. This helps the website run faster and prevents information from being lost if you lose your connection. Firefox shows you how much space is being used and lets you manage these settings to free up space. __TOC__ =Access site storage settings= You can access site storage settings in your Firefox [[T:optionsorpreferences]] as follows: #[[Template:optionspreferences]] #Select the {menu Privacy & Security} panel and go to the '''Cookies and Site Data''' section. ;{for fx68}[[Image:Fx68CookiesAndSiteData]]{/for}{for =fx65, =fx66, =fx67}[[Image:Fx65CookiesAndSiteData]]{/for}{for =fx64, =fx63}[[Image:Fx63settings-AcceptCookies]]{/for}{for =fx62, =fx61}[[Image:Fx61settings-CookiesAndSiteData]]{/for}{for =fx60}[[Image:Fx60Settings-CookiesAndSiteData]]{/for} =Delete site storage for individual websites= #In the '''Cookies and Site Data''' section, click {button Manage Data…}. You'll see a list of sites and how much information each site is storing on your computer. #;{for not fx65}[[Image:Fx60ManageCookies&SiteData]]{/for}{for fx65}[[Image:Fx65CookiesAndSiteData-ManageData]]{/for} #Click the site you want to remove and click {button Remove Selected} (or click {button Remove All} to remove all stored [[Cookies - Information that websites store on your computer|cookies]] and site data). #Click {button Save Changes} to finish. For more information about clearing cookies for individual (or all) websites, see [[Clear cookies and site data in Firefox]]. =Clear all information= #In the '''Cookies and Site Data''' section, click {button Clear Data…}. #;{for not fx65}[[Image:Fx60CookiesAndSiteData-Clear]]{/for}{for fx65}[[Image:Fx65CookiesAndSiteData-ClearData]]{/for} #Put a check mark next to the type of information you want to clear: #* ''Cookies and Site Data'' (to remove login status and site preferences) #* ''Cached Web Content'' (to remove stored images, scripts and other cached content) #Click the {button Clear} button. For more information on clearing cached web content in Firefox, see [[How to clear the Firefox cache]]. =Allow or block websites from storing information= You can set up Firefox to always allow or block specific sites from storing information. You can also allow a site to store only for a single session. #In the '''Cookies and Site Data''' section, click {for not fx65}{button Exceptions…}{/for}{for fx65}{button Manage Permissions…}{/for}. #;{for not fx65}[[Image:Fx60Settings-Cookies&SiteData-Exceptions]]{/for}{for fx65}[[Image:Fx65CookiesAndSiteData-ManagePermissions]]{/for} #Type in the exact address of the site you want to allow or block, or select the site if it's already on the list. #Click {button Block}, {button Allow for Session} or {button Allow}. #Click {button Save Changes} to finish. {/for} See these articles for additional information: *[[Block websites from storing site preferences or login status in Firefox]] *[[Websites say cookies are blocked - Unblock them]]

Some websites have the ability to store information, such as files, in your local storage, and these files can only be removed manually by you. This helps the website run faster and prevents information from being lost if you lose your connection. Firefox shows you how much space is being used and lets you manage these settings to free up space.

Access site storage settings

You can access site storage settings in your Firefox 選項偏好設定設定 as follows:

1. 在畫面頂端的選單列點擊 Firefox 並選擇 設定（在舊版 macOS 上選擇 偏好設定）。點擊選單按鈕 後，選擇 設定。
2. Select the Privacy & Security panel and go to the Cookies and Site Data section.

Delete site storage for individual websites

1. In the Cookies and Site Data section, click Manage Data…. You'll see a list of sites and how much information each site is storing on your computer.

   

2. Click the site you want to remove and click Remove Selected (or click Remove All to remove all stored cookies and site data).
3. Click Save Changes to finish.

For more information about clearing cookies for individual (or all) websites, see 刪除 cookie 以移除網站存放在電腦上的資訊.

Clear all information

1. In the Cookies and Site Data section, click Clear Data….

   

2. Put a check mark next to the type of information you want to clear:
   • Cookies and Site Data (to remove login status and site preferences)
   • Cached Web Content (to remove stored images, scripts and other cached content)
3. Click the Clear button.

For more information on clearing cached web content in Firefox, see 如何清除 Firefox 的快取.

Allow or block websites from storing information

You can set up Firefox to always allow or block specific sites from storing information. You can also allow a site to store only for a single session.

1. In the Cookies and Site Data section, click Exceptions…Manage Permissions….

   

2. Type in the exact address of the site you want to allow or block, or select the site if it's already on the list.
3. Click Block, Allow for Session or Allow.
4. Click Save Changes to finish.

See these articles for additional information:

• 封鎖在 Firefox 中儲存網站偏好設定和登入狀態
• 網站說 Cookie 被封鎖了——將它們解除封鎖