Enable Cookies in Firefox
This guide will step you through the process of enabling Cookies in Firefox.
If you don't have Firefox and would like to try it out, you can download it from the Firefox Website.
Click the menu button
The menu button will be in the top right-hand corner of Firefox; it looks like three horizontal lines on top of each other.
Click the "Options" menu item
After you've clicked the menu button, the Firefox menu apears; one of the items in it is Options (note: on macOS it is called Preferences). Click it!
The Options screen will now appear.
Click the "Privacy & Security" menu item
The major sections are shown as menu items up the left of the Options/Preferences window. Click the Privacy & Security item.
You are then taken to the Privacy settings.
Choose your preferred Browser Privacy/Cookie settings
Firefox has advanced browser privacy settings. Control of the Cookies settings are now combined with some other privacy controls which you can choose here.
You are presented with 3 main options for privacy/blocking:
The Standard option gives you reasonable privacy settings; it will allow normal "first-party" cookies that most websites rely on to work and will block "third-party" tracking cookies - which are often used by companies to track your behaviour across multiple websites. This means that in theory some third-party cookies will be allowed if they are not considered to be "third party tracking cookies".
It will also block known trackers used by invasive advertising companies only when you open a "Private" browser window.
Crypto currency miners are also blocked by this setting.
The Strict option gives you stronger privacy and security settings on the web; however it may cause some websites to not work properly. If this happens, it's easy to white-list certain websites to disable the protection on sites you trust.
Just like the "Standard" setting, it blocks Third Party Tracking cookies (while still allowing First-party cookies which most websites need), and it also blocks Crypto miners.
However now it also blocks known trackers in all of your browser tabs/windows (instead of just when you're in Private Browsing).
It also blocks software which tries to "finger-print" your browsing set up in order to personally identify you.
The Custom setting gives you fine-grained control over what will be allowed/blocked by Firefox.
You can choose to individually allow or block Trackers, Crypto Miners, Fingerprinters and types of Cookies.
The list of trackers is provided by disconnect.me.
Blocking all third-party cookies with Firefox
To block all third party cookies with Firefox, choose the Custom option and then for the Cookies item, select All third-party cookies (may cause websites to break).
Note that if you choose to use stricter privacy settings, it may cause some websites to not work properly. Personally in our experience, the stricter privacy controls (including blocking all third party cookies) haven't caused any noticable problems with the websites we've visited. As always; we advise you to experiment with the settings and find the ones that work for you.
Override cookie and blocking settings for individual websites
Firefox gives you the ability to have general/default settings for browsing the web but then also override those settings for particular websites that you trust and which may require less blocking to work properly.
Changing these settings is very easy; when you're on a website you need to modify the blocking settings for and something has already been blocked, you'll see a small "shield" icon to the left of the website's URL.
Click it and a menu will pop out showing you the blocking status of this page. We've highlighted the relevant section below in the screenshot.
From this pop-out menu, you can control and view a number of things about the page you're visiting.
At the very top of the Site Information menu, you'll be told whether the page you are viewing is securely encrypted by the server - this means that if your internet traffic was intercepted by anyone (companies/criminals/ISPs) they won't be able to read it. Look for the text in green which says "Secure Connection". If it says "Connection is Not Secure" in red text, then your internet traffic to/from that website is vulnerable to being read by any interested party who has access to it. Make sure to never log into or put payment details into any website that isn't secure!
This section shows you whether or not there is blockable content on the webpage you're looking at and what action Firefox has taken against it. In the screenshot above, you can see that it found Trackers and Cookies which were blocked. Clicking on those items takes you to a sub-screen which shows you specifically which trackers/cookies were found and blocked.
If you need to unblock this particular website, you can click the Turn off Blocking for This Site
The Permissions section of the Site Information menu will show you what permissions you've granted for this website. If you have granted any custom permissions for this website, they'll appear here.
If you click the "cog-wheel" icon in the Permissions section, you'll be taken to the Permissions section of Firefox's settings. From here you can control the permissions Firefox will use when browsing the internet.
Consider changing your history settings too
Since you're on the same page as Firefox's Browser History settings, why not scroll down further to the History section and make sure that the settings Firefox have are the ones you want.
You can let Firefox remember your browsing history, force it to always use "Private browsing" mode (it never remembers history) and if you Use custom settings for history, then you can control exactly what Firefox will do.
Close the Preferences/Options tab
Once you have configured your preferences, you can simply close this tab and continue using Firefox.
Congratulations, you just configured Cookies in Firefox. Click here to check if Cookies are enabled.
You may also want to take a moment to clear your cookies and history in Firefox.
Still having problems?
Did you have a problem changing your cookie settings in Firefox? Here are some common problems with solutions:
I tried changing my cookie settings but it has no effect
Sometimes Firefox won't save your settings after you change them. There's a few reasons this can happen. Mozilla (the makers of Firefox) have a helpful guide to fixing this problem: How to fix preferences that won't save