µMatrix: Un cortafuegos matricial ajustable mediante clics, con varias herramientas para mejorar su privacidad. Para usuarios avanzados.

µMatrix le proporciona control total sobre su navegador, permitiendo decidir que conexiones se establecen, que tipo de datos se descargan y que códigos se van a ejecutar. Nadie más decide por usted: Usted escoge. Usted está en control total de su privacidad.

Por defecto, µMatrix funciona en modo relajado "bloquear todo/permitir excepcionalmente". Esto significa que los sitios que requieren <i>scripts</i> de terceros, posiblemente se muestren con problemas. Con solo dos clics, µMatrix se puede configurar para funcionar en modo "permitir todo/bloquear excepcionalmente", lo que hará que usualmente los sitios web se muestren sin problema. Para más detalles sobre el tema consulte https://github.com/gorhill/httpswitchboard/wiki/How-to-use-HTTP-Switchboard:-Two-opposing-views (en inglés).

En cuanto al mito de que los navegadores basados en Chromium no pueden bloquear <i>JavaScript</i> de manera adecuada, vea: https://github.com/gorhill/httpswitchboard/wiki/Blocking-javascript-execution-reliably-in-Chromium-based-browsers (en inglés). En resumen: Si, <i>JavaScript</i> puede ser bloqueado de forma segura en Chromium.

* Examine todas las conexiones remotas, fallidas o intentadas, según fueron bloqueadas o permitidas (usted decide).

* Con un solo clic añada a su lista de permitidos o a su lista negra, uno o varios tipos de peticiones, según el destino y el tipo de datos (una petición bloqueada NUNCA saldrá del navegador).

* Efficient blacklisting: cookies won't leave your browser, javascript won't execute, plugins won't play, tracking pixels won't download, etc.

* You do not have to solely rely on just one particular curated blacklist (arguably with many missing entries) outside which nothing else can be blocked: You are in full control.

* Facilidad de uso: µMatrix le permite agregar fácilmente las peticiones de red que se originen desde una página web a una lista de permitidos/lista negra, mediante clics en la matriz:

- nombres de dominio (columna izquierda)
  * desde muy específico
  * a muy genérico

- tipos de peticiones (fila superior)
  * cookies
  * recursos CSS  (hojas de estilo y fuentes web)
  * imágenes
  * plugins
  * scripts
  * XHR (peticiones hechas por los scripts)
  * frames
  * otras

You can blacklist/whitelist a single cell, an entire row, a group of rows, an entire column, or the whole matrix with just one click.

µMatrix's filtering engine uses precedence logic to evaluate what is blocked/allowed according to which cells are blacklisted/whitelisted. For example, this allows you to whitelist a whole page with one click, without having to repeatedly whitelist whatever new data appear on the page.

All rules are scoped. For example, you can block `facebook.com` and `facebook.net` everywhere except when visiting a page on `www.facebook.com`. This way Facebook won't be able to build a profile of your browsing habits.

The goal of this extension is to make the allowing or blocking of web sites, wholly or partly, as straightforward as possible, so as to encourage users to care about their privacy.

The extension comes with 3rd-party hosts files totaling over 58,000 distinct hostnames (lists can be selectively disabled/enabled according to your choice).

Ultimately, you can choose however you browse the net:

* Blacklist all by default, and whitelist as needed (default mode).

* Whitelist all by default, and blacklist as needed.

Either way, you still benefit from the preset blacklists so that at least you get basic protection from trackers, malware sites, etc. Or you can disable all of these preset blacklists.

Your choice.

Randomly assembled documentation: https://github.com/gorhill/uMatrix/wiki

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FEEDBACK:

For any question/issue you might have, use the "Send Feedback" button on the right, in order for me to be able to answer readily. I can't answer directly to reviews, but I will be more than happy to answer you directly in the feedback section.

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BUGS, ISSUES, SUGEGSTIONS:

https://github.com/gorhill/uMatrix/issues

You are very welcomed to contribute your views on open issues and suggestions, various arguments for/against help me in deciding what is needed to improve the extension.

Facilidad de uso es el objetivo primario. I've seen users give up on Firefox's NoScript because it gets too much in the way according to them, so rather than blame these users for poor security habits, I prefer to blame developers and this project is a tentative to address the issues which cause some users to give up on basic security.

This extension is also useful to understand what the web page in your browser is doing, often without your knowledge. You have full ability to see and decide with whom a web page communicates, and to restrict these communications to specific classes of objects within the web page.

The number which appear in the extension icon correspond to the total number of distinct requests attempted (successfully or not depending on whether these were allowed or blocked) by the web page.

Simply click on the appropriate entry in the matrix in order to white-, black- or graylist a component. Graylisting means the blocked or allowed status will be inherited from another cell with higher precedence in the matrix.

Red square = effectively blacklisted, i.e. requests are prevented from reaching their intended destination:
* Dark red square: the domain name and/or type of request is specifically blacklisted.
* Faded red square: the blacklist status is inherited because the entry is graylisted.

Green square = effectively whitelisted, i.e. requests are allowed to reach their intended destination:
* Dark green square: the domain name and/or type of request is specifically whitelisted.
* Faded green square: the whitelist status is inherited because the entry is graylisted.

The top-left cell in the matrix, the "all" cell, represents the default global setting, which allows you to choose whether allowing or blocking everything is the default behavior. Some prefer to allow everything while blocking exceptionally. My personal preference is of course the reverse, blocking everything and allowing exceptionally.

Esta extensión también es útil si desea aumentar la velocidad de navegación, por ejemplo, bloqueando de manera global todas las peticiones de imágenes.

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CÓDIGO FUENTE: https://github.com/gorhill/uMatrix (GPLv3)

REGISTRO DE CAMBIOS: https://github.com/gorhill/uMatrix/releases