I'm looking for a very low level website blocker for MacOS. Let's say that I want to block Twitter. I want to block it in a way that I can't unblock it without reinstalling the operating system. I'm aware of software such as:  or browser extensions or changing the DNS or host file. But these are too easy to disable. Also Screen Time by Apple doesn't work. I want to block distracting websites from ever working on my Macbook. Does something like this exist? Or if not, is it possible to create something like this?
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I know I can block websites in Parental Controls, but accessing that option requires the "Limit Adult Websites" option, which I find to be overly strict.  Is there a way to block specific websites without third-party software?  I'm running High Sierra on my laptop.
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How do you prevent programs from obnoxiously opening the browser on their own accord?  It's unbelievable that programs/developers feel so entitled as to A.) open another program on one's computer, and B.) then have the gall to browse to whatever site or advertisement they so please.  cough... Revo Uninstaller
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I want to block certain URLs on browsers. I don't want to block whole site. For example, I want to block , but not whole  domain. Is there any way I can do it?
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Is it possible to block one cookie on a domain, without blocking all cookies on that domain? (I want to block the tracking cookies, without blocking the cookies that are required for functionality.) I'm using Chrome on Windows.  I'm aware of  but the answers given don't directly address the question.
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Apple has introduced , also known as "rootless", with OS X 10.11, El Capitan. I understand this is a step for general protection against malware but as a developer I need write access to some of the files it locks away.  How do I disable this protection?
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Is it possible to fine-tune the "Open safe files after downloading" setting in Safari? For example, to make Safari open files like ".ical" et. al., but not Zip-files.  If macOS has no built-in support for this, could a solution be a UNIX script daemon that instantly detects new files in the Downloads directory and opens files with certain extensions?
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I have multiple Safari windows for tab organization. I usually have multiple tabs in each window.  When I click on a link from an app other than Safari, it opens the link in a new tab in Safari, as Safari is my default browser.   The problem is that it often opens in a Safari window that is currently minimized or that I am currently not using. So it doesn't open the link in my main, active, current window (basically the one I have used last). Instead, it chooses its own "default window" to open links in, which may be a window I'm not even using.   However, I would like these links to always open in the window that I used last, and not in a window that I'm not using. Is it possible to make links always open in the last active window you used, or at least set the "default" window which will open new links?  I am currently running macOS Sierra 10.12.1, with the default Safari version that comes with it.
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I know hot to block single tumblr blog with   127.0.1.1 something.tumblr.com   but I want to block entire tumblr. I tried 127.0.1.1 tumblr.com but it's not working.  Is there a way to do this?
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I bought my kids a PC and installed 12.04 (Unity) on it.  The bottom line is, I want my children to use the computer unsupervised while I have confidence they cannot access anything inappropriate.  What I have looked at:  I was looking at Scrubit a tool which allows me configure my wifi router to block content and this solution would also protect my other PC and mobile devices.  This may be overkill as I just want the solution to work on one PC.    I also did some Google searches and came across the application called .  My experience of OSS is that the best solutions frequently never appear first on a Google search list and in this case I need to trust the methods therefore my question is very specific.   I want to leverage your knowledge and experience to understand What is the best way to restrict adult content on 12.04 LTS as this is important to me.  It maybe a combination of things so please don't answer this question "try this or that", then give me some PPA unless you can share your experience of how good it is and of course if there are any constraints.
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I would like to know if there is any way to disable Spotlight Search, even when an user goes to Settings -> Spotlight Search, and change the options there.  That's mainly because anyone could still search in Spotlight only by going to Settings -> Spotlight and enabling the search on the web. I do know that you can set it so you can apply filters, but they are not successfull at what I need. (Yes, I know also that Safari can be restricted under "Restrictions", but I am only talking about Spotlight)  I would need something like "Spotlight Search" under "Restrictions", so I can turn it off completely, so any user can't enable the Internet search again.  That's like a little bug for anyone who want to be fully protected for mature/adult content. (I want to have my own filter, not what Apple says that is good)  PS. Currently I am with iOS 10.X in an iPhone SE. There's a video from youtube  that explains how to disable Settings app. That would be great, but that workaround only work in older versions of iOS.
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Is it possible to delete any of the default apps in OS X? I suppose it is possible, but will anything break if I do?  There's some, such as Stickies, iChat, Dictionary, etc. that I either have no use for, or have replaced with my own apps that provide similar functions.  Thanks guys!
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It worked for a while in the old configuration, but then stopped working for some reason.  Here is my /etc/hosts file from my Mountain Lion MacBook Air:  127.0.0.1 reddit.com www.reddit.com 127.0.0.1 facebook.com www.facebook.com ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting.  Do not change this entry. ## 127.0.0.1       localhost 255.255.255.255 broadcasthost ::1             localhost fe80::1%lo0     localhost   This blocks Reddit,but not Facebook.   I've tried flushing the DNS cache for the machine ("sudo killall -HUP mDNSResponder"), the bowsers (FF and Chrome) and I've tried restarting the computer.   And I've moved the entries to the top of the file on the , but it didn't work before when it was at the bottom either. Each time it would block Reddit but not Facebook.
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I'm looking for a chrome or firefox plugin that allows me to have windows with different sessions. It's a bit like chrome's  works: if you open an incognito window, it won't share the cookies with the "normal" browser window.   I'm searching for a solution that allows me to create several windows (incognito only allows two: the main window and the incognito window), each with a different session (i.e., without sharing cookies between browser windows).  Any thoughts? I'm using OSX.
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I was trying to achieve this using a second account (which is the admin account) and Parental Controls, but it seemed this isn't possible to do so.  I know there are some programs which you can download that help you with this, (Cold Turkey, for example). But, it would be much easier if I could do this using only tools already available on macOS.
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I want to block Yahoo Answers from Google searches. As there is no option from Google for that, are there any extensions for Chrome or add-ons for Firefox that can block sub-domain results from Google search?
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I started using the Firefox extension NoScript, but I'd like to allow all scripts by default, only one particular domain (google-analytics.com) should be blocked/blacklisted.   Is that possible? I could figure out only the other way around: It disables everything by default, but allows a few pages from a whitelist; but this behavior makes the web pretty unusable.
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How do I prevent links to a particular website from showing in search results on chrome, on my mobile?  For example I want to see a video of maybe cows dancing  But I don't want to see any links related to dailymotion.com.  Is there any way I can filter those results out?  (If this doesn't belong here, please leave a comment as to where I can ask this. I feel this could be helpful for others too so I asked it here)