How to Block or Allow Browser Cookies in Firefox Computer?

Learn how to allow or block the web browser cookies from the sites in Mozilla firefox. The cookies are used for authentication and storing the data.

Cookies are introduced to make your browsing experience more comfortable by remembering website paths and login credentials. However, there are some times when you need to disable it to stop privacy invasion from different sources.

Yesterday, my sister consulted me with a similar issue. She wanted to disable her browser cookies as they were causing her system to lag. I decided to help her in blocking the browser cookies on the Firefox browser.

Even you can simply disable or enable Firefox browser cookies as per your preferences. But remember that blocking Firefox cookies will impact your browser’s functioning. You won’t be able to take benefit of auto-sign and some other essential browser features.

Related: How to Enable Privacy and Security in Firefox Computer?

The Mozilla Firefox offers multiple settings to protect privacy, hence blocking/allowing the cookies is quite easy. It has quite a few options where you can block cookies or perhaps allow only specific sites.

Block/Allow All Cookies in Firefox

There are several sites you visit every day that relies on cookies to enhance your browsing experience. They are not a serious threat to your security and privacy as most people tend to think. But, if you found anything very absurd, then blocking cookies should be your priority.

Follow these steps to disable/allow cookies on your Firefox browser: 

  1. Launch Mozilla Firefox on the computer.
  2. Click onFirefox Menu icon for the menu list.
  3. Select the Options tab from the list.How To Block browser cookies in Firefox computer
  4. Switch to the Privacy & Security tab from the left side pane.
    You will now see Enhanced Tracking Protection with three options: Standard, Strict, and Custom.
    How to block browser cookies in Firefox computer
  5. Choose the Custom settings to expand.
  6. Enable checkbox for Cookies.
    How to block browser cookies in Firefox computer
  7. From the drop-down, select All cookies if you want to block all cookies.

That’s it. All the browser cookies will be blocked and no longer saved on the Firefox browser. You should avoid blocking All cookies since it will break the site functioning.

Perhaps, you should prefer blocking Cross-site and social media trackers only. This will make most sites work without any issues. Even blocking All third-party cookies on firefox might lead the site to break.

Allow/Block Cookies for a Site in Firefox

Just like blocking all website cookies, you can also block cookies for a single website. If you think a particular site should not have any of your personal data, then blocking the cookies should be your preference.

Here are the steps to stop/enable cookies for specific website on Firefox: 

  1. Launch the Firefox browser on your computer.
  2. Open and visit the website that 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?This 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 the website that you’ve intended for. Next time when you visit the same website, the cookies won’t be stored from the website if you’ve blocked them.

Allow/Block Multiple Site Cookies Easily

Now, the above method is quite cumbersome if you want to block a few websites. You need to try the above steps for each website. Instead, you can use the Manage Data option within Firefox to block or allow specific sites in one go.

Here are the steps to allow/block cookies for multiple sites on firefox:

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

Repeat step #7 and #8 until you add all the website URL in the Manage Data window. This will disable or allow the cookies for all the websites that you have entered in the given area.

Bottom Line: Allow or Block Firefox Cookies

We can’t deny the fact that browser cookies play a vital role in making your browsing experience better. They help you skip entering your login information by remembering them.

However, there are some other cookies also that can pose a threat to your privacy and security. Therefore, it is recommended to block them. I helped my sister to block the browser cookies for all the websites. It helped her system perform better.

If you do not wish to store the browser cookies without all this setup headache, then you can use the private browsing mode within Firefox.

Have you enabled or disable browser cookies on Firefox? What are the websites that you’ve blocked? Do let us know in the comments below!

Lastly, here are the recommended web browsers for your computer and mobile phone that you should give a try.

WindowsMacOSiOSAndroidLinux
Chrome WindowsChrome MacChrome iOSChrome AndroidFirefox Linux
Firefox WindowsSafari MacSafari iOSEdge AndroidChrome Linux
Edge WindowsFirefox MacEdge iOSSamsung InternetEdge Linux

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