Doen't work - Scam? Rated 1 out of 5 stars

Just downloaded and installed. Won't allow me to "enable" using the button. Doesn't block adult sites.

Metacerf Addon Rated 1 out of 5 stars

I downloaded this addon because Metacerf was able to partner with ICN to block .xxx domains.

I went to the extension tab and pressed Enable. The box is not working and as per Media Partners, the developer "may not" be continuing support for this add-on.

What a bummer.

Not working at all Rated 1 out of 5 stars

could not enable it. it just is not working.

No Sirve, mala Rated 1 out of 5 stars

no bloquea bien, no sirve

Stopped working on FireFox 47+ Rated 5 out of 5 stars

I have been using this fabulous add-on for several years, but after updating my FireFox to 47 this add-on stopped working... All filters are gone and 'Enable' button doesn't respond to clicks. I've tried to contact the developer, but with no luck. It seems that add-on is no longer supported. What a tragedy!

Doesn't work at all! Rated 1 out of 5 stars

It shows as much extreme kink as you want via google's images search feature.

Rated 3 out of 5 stars

Decided to give this a go again, previously felt like it made pages load slower, but it seems to be doing fine. Only one thing that really bothers me now is that a certain website that I still want to be available is not while this is enabled. Is there any way to enable it? I noticed you can send a url to metacert to review but that's not really what I'm after. I would rather just have an option to allow that website. is this possible?

This user has a previous review of this add-on.

Rated 5 out of 5 stars

اقوى اضافة للحماية من المواقع الاباحية

Rated 5 out of 5 stars

This is fantastic!! It blocks content I really don't want my grandchildren to see. Thank you so much. I'm also going to download your Chrome extension and iPad browser.

Rated 5 out of 5 stars

This add on is perfect... so happy that there is an add on for this, I can now let my kids use the computers in my house with full knowledge that they are safe from the seedy side of the internet. this should be a default setting on all browsers if you ask me, but an add on is just as easy i suppose. but again, that you very much for coming up with this idea as we are over the moon with it.

Pioneering online safety for kids Rated 5 out of 5 stars

A must have add-on that gives parents that peace of mind. Kids can browse safely in complete confidence, without the vulnerability of clicking an doggy search results.

I have installed this on all pcs at home, in the office and recommended it to friends and family.

Rated 5 out of 5 stars

Wow. I've been using this and the Chrome extension for a while now and I have to say thank you. I found it very easy to install. I took me a few minutes to figure out that I had to create a password to enable the blocker but when created, it worked like a charm.

Thank you!!

Has potential... Rated 1 out of 5 stars

I was thrilled about this add-on until I discovered that it doesn't block pornography when you search it using an image search engine such as google or yahoo images... The images are marked with the little MetaSurf icon, but you can still see them, which kind of defeats the purpose of this add-on. Work that kink out and this add-on's almost perfect.

Another issue is that I reported a couple inappropriate (pornographic) sites like 25 mins ago and they've yet to be blocked. How long does it take? And why don't we have the freedom to block sites we deem inappropriate? I love that we can report sites, but we should be able to block them instantly, not wait who knows how long for MetaSurf to review it and block it.

For these reasons I'm afraid that, as of now, this add-on deserves no more than a 1. Fix these issues and it'll definitely be 5 star worthy.

This add-on has great potential. It's simple and easy to use. However, it is greatly flawed, and if fixed, I honestly wouldn't mind paying some money for this.

Oh. One more thing: I just realized that any child that has half a brain could easily navigate their way to "Manage Add-ons..." and remove this "Parental Control". If you create a password for this add-on, one should have to enter that password to delete it, otherwise it is useless and SHOULD NOT BE ADVERTISED AS A PARENTAL CONTROL.

Has potential

Hi @Shatowhunter,

We have updated the product description to make it more obvious that this addon is mainly for young children who don't know their way around browser software. That is, until the software requires a password to disable/delete. MetaCert is now in a position to invest more time and money to make further improvements - such as the ability to block sites that you personally believe should be blocked (this method will not require a review from our side as these sites will only be blocked by your own browser).

On average, we review submissions within 3 hours. This is extremely fast when compared to any other software application that provides a central blocking service. Most family safety controls take weeks/months to be updated and most don't allow members of the community to make submissions. That said, we are going to appoint community moderators to speed up this process even further. Parental controls that do allow you to block sites immediately either block almost the entire web apart from a whitelist, or they block keywords which again, block more sites than they should. That said, I'm sorry that you found our process to be slow.

Thank you for your feedback - as you can see from our new product description, we care about what you think and want to do everything we can to make the user experience as good as it can be.

Warm regards,


Paul Walsh
CEO, MetaCert

Rated 5 out of 5 stars

Thanks to the developer for an excellent addon, please feel free to add advanced settings and turn on the filter search engines.

advanced settings

Hi Ruslan,

What do you mean when you say "feel free to add advanced settings and turn on the filter search engines."?

The addon will block sites that we have labeled no matter how you try to access them - whether by search engine, typing directly into the address bar, or clicking on a link inside a social network like Facebook.

Not flexible at all... Rated 1 out of 5 stars

This app needs the flexibility of allowing for white lists and keyword matching. It blocked it's own site and other site that are clearly not adult oriented.

This review is for a previous version of the add-on ( 


Thank you for the feedback Jesse and sorry to hear about your bad experience. We are aware of a couple of issues with the plugin which we are working hard at resolving in the next version.

excellent concept but.. Rated 1 out of 5 stars

I found it slowed down my browsing horrendously, though judging by other reviews this does not seem to be an issue for others?

It actually caused Mozilla to crash on several occasions.

A shame really, because this provided exactly the service I was looking for.

This review is for a previous version of the add-on (1.0.1-signed.1-signed). 

Slow responses

Update: January 27th 2012

Hi Misir88 - all the problems you reported have been fixed. You shouldn't see any performance problems with the latest build.

Hi Misir88

I'm afraid you are right. This problem occurs when you update Firefox to ver 6 after you add our add-on. If you uninstall the addon and then add it again the problem will be fixed. We'll try to make sure that doesn't happen when Mozilla release a new version of Firefox.

Hope you stick with it - we have some more improvements on the way. Please let us know how it goes if you give it another chance.

MetaCert CEO

At last a company taking this issue seriously. Rated 5 out of 5 stars

What a great Add on, I have installed this on all my PC's, it gives me peace of mind that my children are now safe from inappropriate content.
At last a company taking this issue seriously. well done :)

This review is for a previous version of the add-on (1.0.1-signed.1-signed). 

Rated 5 out of 5 stars

Recommended it to my parents just yesterday and after less than a day of install they're commending the usage of it. So many websites my younger sibling plays games on online have deceiving ads leading to 'more games' which really lead to adult-related sites. I'm glad he'll be protected on the internet from sites like that from now on - a must for those with young children and the whole family in general!

This review is for a previous version of the add-on (1.0.1-signed.1-signed). 

Rated 5 out of 5 stars

Excellent add-on! Allows for safe browsing on the web, and is very easy to use! Allows users to avoid inappropriate content on the web, making browsing safe for users of all ages. A MUST download for parents with children using the internet!


This review is for a previous version of the add-on (1.0.1-signed.1-signed). 

It's about time Rated 5 out of 5 stars

Great, simple and effective solution to parental controls. Puts the level of parental control firmly in the hands of the parents where it belongs. Allows them to easily enable and disable the controls in a secure way with a great usability.

10 out of 10 should be pre installed on all browsers, particuarly Playstations and XBoxes.

This review is for a previous version of the add-on (1.0.1-signed.1-signed).