uBO Lite (uBOL) es un bloqueador de contenido experimental con *menos permisos* basado en MV3.

The default ruleset corresponds to uBlock Origin's default filterset:

- uBlock Origin's built-in filter lists
- EasyList
- EasyPrivacy
- Peter Lowe’s Ad and tracking server list
- AdGuard CNAME-Cloaked Trackers

You can add more rulesets by visiting the options page -- click the _Cogs_ icon in the popup panel.

uBOL es completamente declarativo, lo que significa que no hay necesidad de un proceso uBOL permanente para que se produzca el filtrado, y el filtrado de contenido basado en la inyección de CSS/JS es realizado de forma confiable por el propio navegador y no por la extensión. Esto significa que uBOL en sí mismo no consume recursos de CPU/memoria mientras el bloqueo de contenido está en curso, el proceso service worker de uBOL se requiere _solo_ cuando se interactúa con el panel emergente o las páginas de opciones.

uBOL does not require broad "read and modify data" permission at install time, hence its limited capabilities out of the box compared to uBlock Origin or other content blockers requiring broad "read and modify data" permissions at install time.

However, uBOL allows you to *explicitly* grant extended permissions on specific sites of your choice so that it can better filter on those sites using cosmetic filtering and scriptlet injections.

To grant extended permissions on a given site, open the popup panel and pick a higher filtering mode such as Optimal or Complete.

The browser will then warn you about the effects of granting the additional permissions requested by the extension on the current site, and you will have to tell the browser whether you accept or decline the request.

If you accept uBOL's request for additional permissions on the current site, it will be able to better filter content for the current site.

You can set the default filtering mode from uBOL's options page. If you pick the Optimal or Complete mode as the default one, you will need to grant uBOL the permission to read and modify data on all websites.

Keep in mind this is still a work in progress, with these end goals:

- No broad host permissions at install time -- extended permissions are granted explicitly by the user on a per-site basis.

- Completamente declarativo para confiabilidad y eficiencia de la CPU/memoria.
