How to Prevent Users from Changing Firefox Cookies Preferences

Firefox browser is one of the finest browsers to use. Further, you can access various websites through it. In addition, websites ask the users to allow their cookies. There is a facility to prevent cookies preference. But, many users don’t have an idea about ‘How to Prevent Users from Changing Firefox Cookies Preferences?’. You should not worry about it. We are present here for that. Here you will get thorough information regarding the same. You can definitely apply this to your system. We have also covered the article on ‘How to Turn off Annoying Save Login Pop-ups in Firefox‘. Thus, you will get a number of benefits from this. So, let’s have a ride at ‘How to Prevent Users from Changing Firefox Cookies Preferences?’.

How to Prevent Users from Changing Firefox Cookies Preferences?

Cookies help to make the browsing experience very smoother. Moreover, they help to boost the speed of user interaction. So, they play a vital role in website functionality. we are delivering here a tutorial about ‘How to Prevent Users from Changing Firefox Cookies Preferences?’. We assure you that this data will provide you with better outcomes. In fact, you will have a great experience with it. On the other side, you should get ready to grab this golden opportunity. Let’s start this fascinating journey.

Methods Used to Prevent Users from Changing Firefox Cookies Preferences

There are various methods available for this purpose. But, we are providing here some of them for you.

Method – 1 ) Making Use of Group Policy Editor

You can use the Group Policy Editor for this purpose. You should follow the steps given below to do so.

1 ) Open ‘Run Command’ Window

The first thing you should do is o open the ‘Run Command’ Window. For that, you should press the ‘Windows key + R’ together. So, it will show the screen as below.

method 1 How to Prevent Users from Changing Firefox Cookies Preferences step 1

2 ) Add the Command

After that, you should add the ‘gpedit.msc’ command in the specified block. Then, click on the ‘Ok’ button on the downward side of the window.

run command window

3 ) Enabling Phase

Now, follow the path ‘Computer Configuration > Administrative Templates > Mozilla > Firefox > Cookies’ to select the ‘Cookies’ option. Then, double-click the ‘Do not allow preferences to be changed setting’ option. So, choose the ‘Enabled’ option.

enabling phase window
Image Source: thewindowsclub

By doing so, you can achieve the expected target.


Method – 2 ) Making Use of Registry Editor

You can use the registry editor for this operation. it is essential to follow the steps given below.

1 ) Open ‘Run Command’ Window

Press the ‘Windows key + R’ keys together to open the ‘Run Command’ window. thus, you will see the following window.

method 2 How to Prevent Users from Changing Firefox Cookies Preferences step 1

2 ) Add the ‘regedit’ Command

Then, add the ‘regedit’ command in the specified box. Click on the ‘OK’ option to proceed further.

run command window

3 ) Create the ‘Cookies’ Key

Now, follow the path ‘HKEY_LOCAL_MACHINE\SOFTWARE\Policies’ to reach the ‘Policies’ key. Then, right-click on the key & click on the ‘Key’ option followed by the ‘New’ option. Name it as ‘Mozilla’.

cookies key creation window

Moving ahead, create a new sub-key ‘Firefox’. You should follow the path ‘Mozilla > New > Key’ & name it ‘Firefox’. In the ‘Firefox’ key, you have to create a sub-key. So, follow the path ‘Firefox > New > Key’ & name it as ‘Cookies’.

cookies key window

4 ) Choose the ‘DWORD (32-bit) Value’ Option

Then, right-click on the ‘Cookies’ key. So, choose the ‘DWORD (32-bit) Value’ option followed by ‘New’ option.

DWORD (32-bit) Value window

5 ) Adding the Value Data

Name the REG_DWORD value created as ‘Locked’. Double-click on that & set the value data to ‘1’. Then, click on the ‘OK’ button.

value adding window
Image Source: thewindowsclub

Thus, you can go for this way also.


In this way, following the above-mentioned methods, you can prevent users from changing Firefox cookies preferences.