How to Block and Unblock Internet Sites with Firefox

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This wikiHow teaches you how to block a website on your computer's Firefox browser. While there isn't a built-in way to do this in Firefox's settings, you can use an add-on called "Block Site" to block sites for you. You can use the same add-on to unblock the sites that you initially blocked later if you so choose. If you want to unblock a site that you didn't block in the first place, Firefox has a built-in VPN that you can use with an existing VPN subscription, or you can use a proxy site.

Method 1
Method 1 of 3:

Blocking and Unblocking Pages with Block Site

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  1. Its app icon resembles a blue globe with an orange fox on it.
  2. Go to the Block Site installation page . Block Site is a clean site-blocking add-on for your Firefox browser.
    • Alternatively, press Ctrl + Shift + A to open your add-ons manager and search "Block Site." Finally, click the "Recommended" addon to load its installation page.
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  3. It's a blue button near the top of the page. [1]
  4. You'll see this in the upper-left side of the page.
  5. The box will show you where the add-on's icon is so you can use it to block sites.
  6. It's in the top-right corner of the Firefox window. A drop-down menu will appear. [2]
  7. You'll find this option near the middle of the drop-down menu. Your Firefox add-ons' page will open. [3]
    • You can also press Ctrl + Shift + A to open the add-on manager.
  8. The icon looks like a stop sign with "www" inside it.
  9. This three-dot menu icon is to the right of the add–on's name.
    • On Mac, click Preferences instead.
  10. Type in a website's address, making sure to include the "www." and ".com" (or ".org", or whatever the site's tag is) parts of the website's address.
    • For example: to block Facebook, you would type in www.facebook.com .
    • There are many options here that you can set, like displaying a custom message when sites are blocked, or only blocking sites on certain days of the week.
  11. It's to the right of the text field. Doing so immediately adds the website and all of its associated pages to the block list.
    • Repeat this process for other sites that you want to block. [4]
    • Alternatively, you can navigate to that website and then click the Block Site icon to the right of your address bar. The site you're on will be blocked.
  12. Once you have added the sites you want to block, scroll down and click Save Options or your added sites will not be blocked.
  13. If you decide that you want to unblock a previously blocked site, do the following:
    • Click ☰
    • Click Add-ons
    • Find Block Site.
    • Click … .
    • Click Options or Preferences
    • Scroll down to your list of blocked sites and find the site that you want to unblock.
    • Click Remove' to the right of the site.
    • Finally, click Save Options to save your work.
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Method 2
Method 2 of 3:

Unblocking Sites with a Proxy

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  1. Its app icon resembles an orange fox on a blue background.
  2. Go to https://hide.me/en/proxy in your browser.
  3. Type the address of a blocked website into the "Enter web address" text box that's in the middle of the page.
    • You can also select a different country by clicking the "Proxy location" drop-down box and then clicking a new country in the resulting drop-down menu.
  4. It's a yellow button below the text box. Doing so will begin loading your website.
  5. Once the website loads, you should be able to use it like usual. Keep in mind, however, that your website's load times will likely be significantly slower than usual.
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Method 3
Method 3 of 3:

Unblocking Sites with a VPN

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  1. Its app icon resembles an orange fox encircling a blue globe.
  2. It's in the top-right corner of the Firefox window. Clicking it prompts a drop-down menu. [5]
  3. You'll find this option near the middle of the drop-down menu. Doing so opens the Settings page.
    • On a Mac or Linux computer, you'll instead click Preferences .
  4. It's on the left side of the page. [6]
  5. This section is at the very bottom of the "General" Settings page.
  6. It's to the right of the "Network Proxy" heading.
  7. You'll find this near the top of the window. [7]
  8. Type your VPN's network address into the "HTTP Proxy" text box.
    • If you don't have a subscription to a VPN service, you'll need to sign up for one before you can do this.
  9. Type your VPN's port into the "Port" text box.
  10. It's below the "HTTP Proxy" text box. [8]
  11. Firefox will now use your VPN's address to reroute its traffic, which should help unblock most sites (including system administrator-blocked sites and region-locked sites) in your Firefox browser.
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Community Q&A

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  • Question
    How do I unblock the website?
    Zildjian Recongco
    Community Answer
    Try to use a VPN. I always use browsec when I'm using a computer on our school to access YouTube and Facebook, it works and it's free to download, but it may affect your internet speed. If you have a high-speed internet that won't be a problem.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
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    Yes No
    Not Helpful 2 Helpful 5
  • Question
    How do I allow ads on one specific website with Firefox?
    Community Answer
    You can allow/block ads on any site with just an extension/add-on such as AdBlock or AdBlock+. If you would like to know how to use AdBlock then here are the instructions: If you're on a site in which you want to allow ads, click on the AdBlock extension icon, then disable it on the site you're currently on. If you're on a site in which you want to block ads, the AdBlock extension blocks all ads from all pages.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
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      Tips

      • With Block Site, you can right-click a blank spot on any website and then click Block this domain in the context menu to add the site to Block Site's list.
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      • You can temporarily disable Block Site's blocking by clicking Disable to the right of Block Site in the Add-ons section.
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      Warnings

      • There is no way to password-protect your Firefox extensions, so anyone with access to the Add-ons page can disable or remove the program.
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      References

      1. ↑ https://support.mozilla.org/en-US/kb/find-and-install-add-ons-add-features-to-firefox
      2. ↑ https://support.mozilla.org/en-US/kb/find-and-install-add-ons-add-features-to-firefox
      3. ↑ https://support.mozilla.org/en-US/kb/find-and-install-add-ons-add-features-to-firefox
      4. ↑ https://webextension.org/listing/block-site.html
      5. ↑ https://support.mozilla.org/en-US/kb/connection-settings-firefox
      6. ↑ https://support.mozilla.org/en-US/kb/connection-settings-firefox
      7. ↑ https://support.mozilla.org/en-US/kb/connection-settings-firefox
      8. ↑ https://support.mozilla.org/en-US/kb/connection-settings-firefox

      About This Article

      Article Summary X

      1. Go to https://addons.mozilla.org/en-US/firefox/addon/block-website .
      2. Click + Add to Firefox .
      3. Click Add .
      4. Click the menu and select Add-ons .
      5. Click Extensions .
      6. Click Options next to the extension.
      7. Create a password.
      8. Enter the site address and click Save .
      9. Remove the site when you want to unblock it.

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