screenshotBlock Site | Download Block desired domain(s) with just one click.

  Please check the YouTube Tutorial at the bottom of this page to get an idea of how this Addon works in your browser.  If you want to contribute to the developement of this Addon, please Fork it on GitHub, and push your changes to a named branch. Moreover, you can review all the comments made on GitHub commits.

Some of the important features about Block Site addon are listed below. This is followed by an overview about this addon. This summary contains few words about the addon, its function and features. Next is FAQ, this section is useful to get information about how this addon works in your browser. If you couldn’t find a specific answer, please fill the bug report form in this page or the contact form in the homepage to let us know about your question. Following the FAQ, is the bug report form. It is designed to collect user feedbacks and bugs about this addon. Users can suggest improvements or feature requests through this form too. Next section is for submitting comments about this addon which uses facebook comments plugin. The last section is dedicated to reports submitted through the GitHub website. We hope the information provided in this page, could help you get all the basics you need about this addon and enable you to have a better experience with Block Site.

Block Site easily blocks website(s) of your choice!

6 Reasons to Use Block Site

  • Allows you to block desired websites (domains only, not URLs).

  • Ultra-lite: no significant memory and CPU usage.

  • You can add a redirect URL for any blocked domain.

  • To operate with this addon, simply right-click on any webpage and then click on the "Block this website" in context-menu item.

  • Remove any blocked item from the options page.

  • Available for all browsers and platforms.


  • There are a lot of unwanted websites that may open while browsing and sometimes, you have to deal with them quite often. Some of you constantly try to find ways to block the websites but the ones you find either is tough or consume a lot of memory. Block Site add-on is a simple and easy way to block websites of your choice. It is very easy to operate. Just right-click on any webpage and click "Block this website". The website will be added to the block list (see options page). It is also worth noting that the whole domain would be blocked not just a specific URL. If you want to change the list, open the options page and remove any website from the list. For your convenience, this browser add-on has no toolbar icon. It is only a context menu item to improve the user experience. It is a very lite add-on and does not consume a lot of space on the drive (PC, Mac or Linux).

    Block Site browser add-on supports almost all the popular web browsers including Mozilla Firefox, Google Chrome, and Opera. However, other browsers are also being added to the list of supported browsers. The simplicity of this add-on makes it very popular among the rest of the add-ons of the same nature. Please note, there are no settings for this add-on to adjust, only a block-list is available to add or remove blocked domains. Block Site is very easy to install. Just visit the add-on store page and search using the name and click Install. It is also very easy to remove/uninstall and does not require a browser restart. Blocking websites and domains is now not a tough task to handle. This add-on is also very useful for educational institutions and offices. Block Site support page also allows for providing feedback and submitting bugs. If you find some problem, you can help it make better and more powerful.

Frequently Asked Questions

  • 1. What is Block Site?

    Block Site is a browser addon to help you block desired websites. To operate with this addon, simply right-click on any webpage and then click on the "Block this website" context-menu item. The website will be added to the block list. Please note, the whole domain will be added to the block-list not just a specific URL. To change this list, open the options page and remove any desired item. For any blocked domain, you can add a redirect URL from the options page. So, instead of blocking a page the website will be redirected to your desired URL.

  • 2. Does this addon has a toolbar button?

    No, this addon does not have any toolbar button. There is only a context-menu item (in right-click) to add desired website(s) to the block-list.

  • 3. How to access to the settings for this extension?

    In order to access the settings please click on the options button next to the addon name. The options page will be open. Please note, currently there are no settings to adjust, only a block-list is available to add or remove blocked domains.

  • 4. How to uninstall this extension from your Firefox browser?

    In order to uninstall this extension from Firefox, please go to Firefox Add-ons page, find this Addon from the list then press on the uninstall button.

  • 5. How to uninstall this extension from your Opera or Chrome browser?

    In order to uninstall this addon from Opera, please go to the extensions page, find this Addon from the list and then press on the remove button.

  • 6. How to disable this extension?

    In order to disable this addon, find the addon name from the extensions page in your browser and then click on the disable button.

  • 7. How to unblock a domain?

    In order to unblock a domain, please head to the options page and find the desired domain from the block-list. Then remove this domain by clicking on the cross sign next to each item. Please note, removing an item is not reversible.

  • 8. How to add a redirect URL for each blocked domain?

    In order to add a redirect URL, please head to the options page and find the domain name from the block-list. Then add a redirect URL to the designated area next to the domain name. Please note, the redirect URL should be a valid URL otherwise it will not work. A valid URL should be in the form of "http(s)://".

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    Submitting Bugs

    Your feedback goes a long way towards making this addon even better. With this Bug report form, you can submit bugs or suggest enhancements for the functionality or performance of this addon. Please note, this bug report form will be sent to the developer(s) of this addon. You will not get an immediate or personal response at the moment. However, the developer(s) may contact you through the email address provided in this form for further clarifications or requesting additional information regarding the reported bug(s).

    Please enter the name of the extension (addon).

    Please enter the current version of the extension.

    Please be as specific as possible. Basically, describe what happened, what you were doing when it happened, and why you think it is a problem.

    Describe the step-by-step process required to reproduce the issue you are reporting. Be specific when describing these steps by providing as much detail as possible.

    Please try to leave a link to a screenshot for the specific bug or error report.

    Please enter your operating system.

    Please enter your browser and its current vesrion.

    Please enter your email address.

    Comments | Reviews

    • Please note: keep these reviews clean, and avoid the usage of derogatory or inappropriate language or terminology in references to individuals or groups based on race, national or ethnic origin, color, religion, age, gender and etc. Do not submit bugs in your reviews, use the above bug-report section instead. Also, never post any personal information in these reviews.

    GitHub Reports | Fork me on GitHub