Wayyy better than the other "Blocksite"

if you want ti block a website its the best offer

单击时会屏蔽根域名, 我只想屏蔽当前子域名, 希望设置成默认屏蔽当前子域名, 别误杀.

Ext doesnt do anything.

Only site blocking addon working on my mobile device so far. Worked out a few learning curve kinks and now it's doing its job great.

Misspoke earlier, the extension works as it says, and well. Would be nice to not be able to disable it without the password but that's likely limited in scope for an extension.

my kids hate it me love its

Works just fine. However, I strongly dislike how it appears when one goes to a site one has blocked. It looks like you've been taken to some hack site. It would be MUCH BETTER if instead of the page heading being "Restricted Access" it said something like "This page/site has been block by the Block Site Firefox Addon."
Please, don't expect me to realize what is going on by seeing some stupid icon either. (I hate icons, but they're here to stay.) Secondly--although this may be an option--the screenshot shown in the example is white, while I get a BLACK screen (which, again, looks hackish).