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Block or Allow Browser Cookies in Firefox on the Computer

Do you like to allow or block browser cookies from sites in the Mozilla Firefox browser? Learn how to manage site-specific cookie settings.

Firefox allows users to control websites’ cookies by blocking all or only third-party cookies. The feature aims to give us control over our browsing privacy by limiting the information that websites can collect and track about us.

We can also add sites to the exceptions list to allow cookies from specific sites where it is essential (like account sign-in).

In this guide, we have shared the steps to manage the browser cookies in the Mozilla Firefox browser.

Manage ‘All Site Cookies’ Settings

Follow these steps to turn site cookies on or off:

  1. Launch Mozilla Firefox on the computer.
  2. Click on More horizontal 3-bar icon for the menu list, and select the Settings menu.How To Block browser cookies in Firefox computer
  3. Switch to the Privacy & Security tab from the left side pane.
    It will display the Enhanced Tracking Protection with three options: Standard, Strict, and Custom.
    How to block browser cookies in Firefox computer
  4. Choose the Custom settings to expand.
  5. Enable the checkbox for Cookies.
    How to block browser cookies in Firefox computer
  6. From the drop-down, select All cookies if you want to block all cookies.
    It will block all cookies and no longer be saved on the browser.
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Note: Blocking All cookies will break the site’s functioning like account sign-in. Hence, consider blocking only the untrusted sites

You may prefer blocking Cross-site and social media trackers only. It will make most sites work without any issues.

Even blocking All third-party cookies might lead the site to break.

Manage Site-Specific Cookies

You can block cookies for a single website just like blocking all website cookies. Here are the steps to stop or allow browser cookies for specific websites:

  1. Launch the Firefox browser on your computer.
  2. Open and visit the website where you want to block cookies.
  3. Right-click on the webpage and choose View page info. 
    how to block cookies for a single website in Firefox computer?It will open the Page Info window.
  4. Switch to the Permissions tab within the window. 
  5. Locate the Set Cookies option and uncheck the Use default option.
  6. Select the Block/Allow radio button for Set Cookies.
    how to block cookies for a single website in Firefox computer?

It will disable/enable the browser cookies for your intended website. Next time you visit the same website, the cookies won’t be stored on the website if you’ve blocked them.

Add Site URL to Exception for Blocking Cookies

The previous method is cumbersome if you want to block many websites. Instead, you can use the Manage Data option within the browser to block or allow specific sites in one go. Here are the steps to manage cookies for multiple sites:

  1. Launch the Firefox app browser.
  2. Click the More horizontal 3-bar icon option and select the Settings menu.
  3. Switch to the Privacy & Security tab from the left pane.
  4. Scroll down to find the Cookies and Site Data section.
  5. Hit on the Manage Data… option.
    how to block cookies for a more than one website in Firefox computer?
    It will open the cookies and site data pop-up window.
  6. Enter the Site URL of the website in the Address of website field.
  7. Click on the Block or Allow button per need.
    how to block cookies for a more than one website in Firefox computer?
  8. Hit the Save Changes command button.

Repeat steps #7 and #8 until you add all the website URLs in the Manage Data window. It will disable or allow the cookies for all the websites you have entered in the given area.

Bottom Line

We can’t deny that browser cookies are important to keep you signed in and known to be frequently visited. They help you skip entering your login information by remembering them.

If you do not wish to store the browser cookies, you can use the private browsing mode in the Firefox browser. If the cookies are already stored, then you can clear the saved cookies.

Similarly, you can manage the cookies settings in the Firefox app on an Android device.

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Kushal Azza

Kushal Azza

Kushal Azza is a Google Certified Analytics & IT Professional, Digital Content Creator, and Go-To Digital Marketer with an Engineering Degree. He has over a decade of experience solving tech problems, troubleshooting, and innovating digital solutions. Follow him on Twitter and LinkedIn.

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