What is it doing?! Rated 1 out of 5 stars

At first glance, it looks like it's working, but, paying close attention, something fishy flashes... The URL is updated, so, the supposedly blocked site's Page is loaded and processed (in my test case, it also redirected to a subdomain in the same site), only then the Page is blanked out! For a fraction of a second, I saw the whole Page loaded, images and all, then, everything was wiped out, including the address in the URL field... So, what is it doing, this add-on, loading the Pages to, AFTERWARDS, clean its tab?! Whatever damage the site could have done, it would have done by the time it was wiped out! Useless add-on!

Doesn't work Rated 1 out of 5 stars

I added a site to the add-on. I restarted the Firefox. I went to the blocked(?) site and it took me to it. Hello? This wasn't exactly what was supposed to happen ... but it did.

Simple and not hyped Rated 5 out of 5 stars

I've been looking for something to block sites for about a whole week, and just found hyped complements with unique features, international approve and other bs they say to gather attention.
Until I found this. It's simple and not glitched, could be improved slightly like with an addition of website redirection or complete block, but remains the best beyond others at getting its job done.

Works great for my applications Rated 4 out of 5 stars

I did the same thing as a previous user. Signed up so I could write a review. When ever I would click on one of those sites to read about interesting thing or pictures a bunch of trash windows would open up and things would slow down. This app stopped that from happening and the site I wanted to see loaded with lightning speed compared to before. Don't know how it will work when a bank will redirect me to a login page but it will be worth the effort to use it for sites like iTorrentz that load a bunch of add pages if you click on any of their links. 4-stars because there is always room for improvement.

My backup weapon when my adblock plus nailed by adblock killer Rated 5 out of 5 stars

Totally useful if you know how to use developer tool for obtaining ads sites. Really, I wonder why with bad review though.

Works but needs redirect Rated 4 out of 5 stars

It's great! I've been using this for a while and love it. Just add a redirect option and it will be perfect.

no opinion yet but a wish for.... Rated 2 out of 5 stars

I've not yet put it to a test but right off the bat, would like a toolbar icon where you could simply click to add current site to blocklist

Doesn't work for me Rated 1 out of 5 stars

I installed this on Firefox 40.0, and it didn't block the site I tested. It loaded as if Simple Site Blocker wasn't even there. Yes, I configured it correctly; and yes, the URL was typed in correctly.

Sorry, Charley; it needs more work!

Rated 5 out of 5 stars

Just what I'm looking for. Others who use my PC won't know that I've blocked some sites which they use. Love it... :D

Rated 2 out of 5 stars

I just loaded this add-on and specified several sites and none of them have been blocked after several restarts of Firefox. The doc that shows up in the Option pop-up is truncated thus it whole Whitelist discussion is lost. I loaded another add-on on my wife's XP machine that works great - wish I could find it again!

Rated 1 out of 5 stars

It loads the target site's page first then quickly loads a blank page. It should not even request a page from a blocked site.

it's work Rated 5 out of 5 stars

just install it on 06/24/2014, and it's work just like it meant...

Works for me Rated 4 out of 5 stars

Does what it clames to do.
I created an account just to write this comment.
It really works.

Works Great Rated 5 out of 5 stars

Simple, buts does what it says.

shame Rated 1 out of 5 stars

its a shame this DOESNT'T work. installed and entered, several sites immidiatly, then entered ones i know are safe and use regularly and it didn't block them.

it will awesome if it does following. Rated 4 out of 5 stars

1)some ui improvement 2)page redirection for blocked url 3) add url from browser using right click

doesn't work Rated 1 out of 5 stars

this add-on simply doesn't work.