Parents may not be able to control everything their kids do all times, but when it comes to the internet – you can have more control than you think. By using sleuthy add-ons, you can block your kids from anything you deem unfit.

There are several parental extensions that have been made for Chrome and Firefox. From a simple add-on that can block offensive pre-determined words using symbols to one that’ll block any site you specify, the parental controls available for browsers are better than ever.

Our guide will outline the best extensions and add-ons for achieving better parental control in Chrome and Firefox.

See Also: How to make Chrome Extensions Work on Opera (Using this trick you can make Chrome parental control extensions work in Opera as well)

Chrome Parental Control Extensions

Nanny for Google Chrome

Previously known as Chrome Nanny, Nanny for Google Chrome is the perfect extension for older children who have time management issues when it comes to homework. What it does is limit the amount of time your child can spend on his/her “fun” sites, and forcing them instead to focus on the work at hand. These are called “blocksets.” You can specify Facebook cannot be accessed between 3 pm – 6 pm for example.

Many parents may also find this a useful extension for keeping them on-track, as it has a built-in tracker that keep tabs on where you go online and how long you spend at each site. A true blue URL-blocker extension based on the time of the day you specify, Nanny for Google Chrome is a reliable way to prevent your kids from visiting sites you disapprove.


Download Nanny for Google Chrome


For a simpler method of blocking online content, look no further than tinyFilter, which blocks sites not by URL, but by keywords you specify when setting it up. For example, it has a “Profanity Filter” that blocks certain profane words by default, but it can be modified to add additional words. This add-on can still block URLs that you designate, however, tinyFilter really stands out for its keyword filtering abilities.


Update: This extension is not available on Chrome store. An alternative link is given below:

Download tinyFilter

WebFilter Pro

For those with younger children, a basic yet highly effective add-on is WebFilter Pro. This extension blocks questionable material by filtering content in a cloud environment based on pre-determined categories which you from in set-up. If a site contains any info belonging in that category, it’s blocked.

And these “blocking” categories cover all the important things, such as malware and fraudulent sites, adult material, abused drugs, gambling and social networking sites. Due to tinyFilter’s category method of blocking, this extension is easy to use. It also has both a “Black List” and a “White List” where you can permanently block or allow certain sites.


Download WebFilter Pro

Website Blocker

Another parental control extension that will block specified URLs for a specific time is Website Blocker. This Is slowly becoming quite a popular app for blocking URLs, and it is in large part due to its ease of use. The warning messages that alert you can’t visit a site have a sleek GUI, and will definitely get the attention of your kids.


Download Website Blocker


A kind of all-in-one parental extension, Blocksi does what many of the above extensions can do. It can block sites based on URLs that you input, it has a time manager and it can also filter bad content by detecting “bad” content you pre-specify. Also, Blocksi filters unwanted content via categories. The extension has 79 categories from which to block content from six main “groups,” including “Adult” content, “Unethical” content and “Security Risk.”


Download Blocksi

Firefox Parental Control Extensions


On the Firefox side of things, one of the most popular parental control add-ons is BlockSite. This add-on blocks URLs of your choice, but it also goes as far as disengaging links that go to these blocked sites just to be thorough. Blacklists and white lists are also available, which you can use to ensure the right and wrong sites are always allowed.


Download Blocksite


This extension offers high-quality filtering at both free and premium levels. FoxFilter is a personal content filter that can block explicit content quite impressively, as it bases its keywords and phrases on Microsoft’s blocking filters. Categories are also a big part of this extension and help you remember every area to set limitations on. And when trying to find FoxFilter in Firefox, it under the main menu under “Options,” not under “Extensions.”


Download FoxFilter

Anti-P**n Pro

One of the best adult material blockers out there is Anti-P**n Pro and is just the thing to put the brakes on overly curious kids. This extension offers cloud-based filtering of explicit content by monitoring billion of websites and it blocks adult content by blocking categories, which are found in the cloud “Options” area, where you can block “adult material,” “adult content,” any sites with the word “sex,” etc.


Download Anti-P**n Pro


Considered the Firefox equivalent of Nanny for Chrome, LeechBlock will block any sites you specify. All you need to do is to go in and specify which URLs you don’t want your children to have access to. Marketed as an add-on to stop time-wasting sites from “leeching” the time out of your day, this extension can be used as a great parental control as well.


Download LeechBlock

ProCon Latte Content Filter

If you’re looking for an extension that will block sites entirely, ProCon Latte Content Filter is an extension that gets mad props for this ability. By entering a list of keywords, if your child tries to visit a site containing any of those keywords, the entire site will be blocked. A “Profanity Filter” is also included.


Download ProCon Latte Content Filter


As a parent, you can never be too safe, and these extensions are some of the highest rated apps at any parent’s disposal. Just remember to always check the web history in the browser each day in case your kids are somehow getting around your blocking parameters.

And if you think your kids are too smart for blocking extensions, check out this software that also specializes in parental control – KIDZY.

  • Thanks for bringing this to our attention Paul. I took a peek at the Metacert website, and it looks pretty good. I’ll be testing this out on all platforms and see if we can review it on our blog. Thanks.

    • Paul Walsh says:

      Thanks Vikram. Our additional categories in the Chrome extension work but they are in beta because they don’t come close to our strength in blocking pornography. Just so you know.

  • Thanks a lot for this article. I’ve been trying to do this for the past 3 days without any success. Atlast, content filtering in browser level!

    My opinion for the firefox addons:

    Blocksite: from the desc, I feel that it doesn’t support keyword blocking, so its of no use to me.

    FoxFilter: doesn’t have a easy UI. couldn’t get it to work as per my needs.

    Anti Porn pro: didn’t want an addon with such a downright title. so didn’t try

    LeechBlock: works well, only for sometime. I think the “lockdown” button/feature has some problem/con.

    ProCon Latte Content Filter: Great! Just what I had expected.