AVOID New updates privacy policy changed to collect and sell browsing history.
Removed it from all my browsers.

It does not work, i cannot block sites, i cannot delete and reinstall it. My son was able to defeat it.

Time schedule still does not work and when they upgraded, I lost all of my blocked sites.

Nach dem Update absolut nutzlos!
Wenn eine Seite im Hintergrund geöffnet wird, wird diese erst blockiert, sobald man sie betrachtet.
Eine Blacklist sollte alle gelisteten Seiten garnicht erst laden!

Time of day blocking doesn't work. App lost my entire sitelist after a few days.

It doesn't work ... "Block Facebook.com between 6:00 and 18:00." Went to Facebook to test, the page loaded just fine. Fedora 28

I didn't like privacy policy, hence removed it from my browsers.
I don't need another company collecting my browsing history.

Ich habe keine Möglichkeit gefunden,zu sperrende Seiten einzutragen.

So the new privacy policy says that they collect your browser history including sites visited.

So fuck that, not gonna touch this shit.

Also it lost my list of sites during the update.

The time of day settings do not work.
Stops working at all after a couple of days/weeks.

I really liked this add-on for a day. Then I opened two windows on firefox and add-on was completly useles on the other window. I was able to reach blocked web sites. While this bug remains one star out of five will remain too.

Rubbish extension! My kids can still access blocked sites! I set a parental control with a password I am CERTAIN of yet it says again and again that it's the wrong password. So now my kids can still use the 'blocked' pages and I can't get into the controls. Bye bye silly app.

Doesnt save the blocked sites.If I close Firefox then re-open it I have to import the block sites again

It doesn't work. That's all.

It is rather a very poor user experience to ask him/her to type the url. Why not design this add-on to allow to add it by click on the tab and extract the site info directly?
Also, I noticed that typing the domain like domain.com won't block landing.domain.com. What is the point then? The malicious web site admin can create a second site like landing2.domain.com and go on business as usual.
I really liked to try this add-on at first because I wanted to avoid editing the hosts file directly.
I would appreciate if the developers listed to this feedback.

Will not keep blocksites in browser so have re-add it each time, whats the point? Each time browser starts have to add blocked sites in again. Totally pointless and shit add-on

doesn't work at all

Don't download it. It doesn't work at all.

doesn't work at all. still full access to sites.
(using FF Developer Edition)

Does not work on Firefox on Windows 10. Please fix.

Using firefox 59.0.2.
The add-on doesn't seem functional. I'm able to set all of the settings and the interface seems to work, but I'm still able to access blocked sites. I've tried restarting to double check.
I'll change the rating should anything change.

It doesn't work on Firefox Quantum (59.0.2)

Does not work with Firefox.