How to Keep Just One Website Accessible in Chrome and Firefox

How to Keep Just One Website Accessible in Chrome and Firefox

Hey there! I want to share a nifty trick with you on how to control which websites you can visit on Chrome and Firefox. It’s quite simple, really, and it can come in handy when you need to focus on just one website and avoid distractions. So, let’s dive right in!

First things first, open up Chrome or Firefox – whichever browser you prefer. Now, type “chrome://settings” in the address bar of Chrome or “about:preferences” in the address bar of Firefox, and hit Enter. This will take you to the settings page.

Okay, now that we’re in the settings, I’ll show you how to set up a block for all websites except the one you want to keep accessible. In the search bar on the settings page, which is usually located at the top, type “Content settings” and click on the option that pops up.

Next, you’ll see a page with various content settings options. Look for the one that says “Block sites from running JavaScript (recommended)” and click on it.

You might be wondering, “What is JavaScript?” Well, it’s a programming language that powers a lot of websites, allowing them to be interactive and dynamic. By blocking JavaScript, we can effectively limit our browsing to just one website.

Here comes the interesting part! Under the option we just selected, there’s a button labeled “Add” – click on it. A dialog box will appear, and this is where you can specify the website you want to keep accessible.

In the dialog box, type the URL of the website you want to allow (for example, “”) and click “Add”. By doing this, you’re telling Chrome or Firefox to let only this website run JavaScript, while blocking all others.

Now, close the settings page and try visiting a different website, like “”. You’ll notice that it won’t load properly because JavaScript is blocked.

But don’t worry, the website you wanted to keep accessible, like “”, will still work perfectly fine. You’ll be able to navigate, interact, and do whatever you need to do on that website without any issues.

So, there you have it – a handy trick to block all websites except the one you need in Chrome and Firefox. It’s a simple way to boost your productivity and stay focused. Give it a try and see how it works for you!

How to Block All Websites Except One in Chrome and Firefox

The Internet is filled with so much information, but it’s also filled with a lot of distractions. Trying to stay focused while browsing the web is not easy at all. That’s why it’s common for people to want to block certain websites.

Aside from distractions, there are also safety concerns. There’s a lot of disturbing content out there, and if you’re a worried parent, you might want to block access to certain sites. But blocking all websites except for one is a different story. In this discussion, I’ll explain why you might want to do it and how to go about it.

A Very Specific Purpose

Blocking all websites except for one turns your browser into a tool with a very specific purpose. Just the fact that you’ll only be using it to access one website says a lot. So why should you do this?

The answer is simple – to protect your account and information. By blocking access to all other sites, you become completely protected from attacks like clickjacking and cross-site scripting. This is especially important for websites that contain personal and sensitive information, such as medical sites, financial sites, and email accounts.

When you block all other websites, you’re also blocking all connections except for the one to the website you’ve allowed. If a connection originates from a domain that’s not on your whitelist, third-party scripts won’t load. And obviously, you won’t be able to manually open those third-party sites in your chosen browser.

The –host-rules Parameter for Chrome

If you’re a Chrome user, you can use the –host-rules parameter to block all domain connections except for the one you’ve whitelisted. Here’s what a general parameter should look like:

–host-rules=”MAP *, EXCLUDE *”

With this parameter, any connection attempts to other domains will be redirected to localhost, while connections to and its subdomains will still work. If you want to add more exceptions, it’s as simple as adding them in the same way:

–host-rules=”MAP *, EXCLUDE *. “,”MAP *, EXCLUDE *”

Add the parameter to Chrome by following these steps. Right-click the Chrome shortcut on your Desktop, Taskbar, or Start Menu, then select Properties. After that, add the parameter at the end of the Target listing, leaving a space in between.

How to Block Websites Except One in Chrome And Firefox

Alright, let’s get started. Just click OK to apply the settings.

If you want to visit other sites in Chrome, you can create a new shortcut without changing the first one.

Extension for Firefox

If you’re using Mozilla Firefox, you’ll need to install an extension called Simple Blocker for your browser. It has two filter modes: Blacklist and Whitelist.

The Blacklist mode shows all the URLs that match a specific pattern, while the Whitelist mode shows all the URLs that don’t match that pattern. Here’s an example:

The command above allows access to the mentioned sites while blocking any other connection attempts. And if you only want to create a browser for a single site, you can do that too. Creating a new Firefox profile is super easy with the Firefox Profile Manager.

Simple Distraction Removal

Now that I’ve shown you how to block all websites except one, it’s time to ask yourself if it’s really necessary. If you don’t have any sensitive personal accounts and you just want to eliminate distractions, you may not need to go through all this trouble.

If you only want to block specific distracting sites like Facebook, Instagram, or Twitter, you can manually block them in your browser using an add-on called BlockSite. It’s available for both Chrome and Firefox. And don’t worry, you can always unblock the sites whenever you want.

Here’s how to block a site. After you install the add-on, simply right-click on the page, select Block site, and then Block this site.

Block All Websites Except One in Chrome And Firefox

There are many extensions for Chrome and Firefox that can block websites, but this one is really simple to use and works really well.

Once you install it on Firefox, you’ll need to restart the browser to activate the add-on. Blocking a site is a little more involved than just right-clicking. You’ll have to add it to the Blacklist by going to Tools, then selecting Add-ons from the Menu bar. Under BlockSite’s add-on, click on Preferences, then choose Blacklist, and finally click Add.

Block Websites Except One in Chrome And Firefox

Once you’ve added the website, just click OK to save.

All but One

You can block all websites except one in both Chrome and Firefox, and it’s actually pretty easy. But if you don’t really need a browser for just one website and you’re just trying to stay focused online, a simple add-on will do the job of getting rid of the sites that distract you.

Of course, not every solution works for everyone. If you know of an easier way to stay focused online, feel free to share it in the comments.

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