After installing Personal Menu, "Menus Toolbar" is available in Toolbar Context Menu, and you may hide it to save the space of browser

This extension will enable you to organize your status bar icons. You can now rearrange or remove any item (icon or text) in the Firefox status bar.

Permite cambiar rápidamente entre los diferentes paneles laterales, mostrar los cuadros de diálogos como las descargas o extensiones en el panel, y ver el código fuente o las páginas en el propio panel.

incluye un botón de desplazamiento y una barra de herramientas

Permite personalizar la apariencia de las páginas y la interfaz de usuario

Stylish es a CSS lo que Greasemonkey es a Javascript

Guía del usuario: http://userstyles.org/stylish/help

enhances Firefox's tab browsing capabilities

duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows,

a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows

A dynamic theme that lets you customize it's appearance

Selecciona cualquier nombre o empresa que veas en Internet y búscalo en XING

Keeps deviantArt always near by showing you when new messages arrive for you and giving quick access to them.

shows the song being played on your favorite radio station on the status bar.

search the lyrics of the song being played, or get information about the artist

allows you to reach the homepage of the radio station or play the on-line radio

allows you to get the following information about any URL in Firefox:

Rankings information (Google PageRank, Alexa rank, Compete.com rank, Quantcast rank, Technorati rank)

IP address information (IP, network name & range, country)

when overing an image with mouse, adds a "save" button in the corner of that image

Easily navigate through Google search results using a fast, simple and useful Tag-Cloud technique.

Use our Topic-Mapping-Technologies for quick access to answers, news, videos, blogs, Wikipedia and more

Friends page monitoring; - new messages observation (in "Message Center"); - new comments tracking; - friends' birthdays reminder; - "Friends/Friends of" lists lurking; - comments folding and unfolding

quick access to main diary pages and last entries, replacements according to patterns, quick text insets, last comment autosaving and restoring on demand, style managing on the fly, maximum image width restriction for Friends page, cut unfolding, comments load without opening a new tab, build-in friends edition, addition to memories, commentation and subscription forms, handy tag viewing and management, comment and Friends page filtration, userpic randomization for posts and comments, journal, memories and communities export, batch changes in post access levels and text of entries, switching between linear (temporal) comment format and tree-like comment format, etc.

For correct work of extension user must login

provides many additional options, that are not displayed in the Firefox "Options..." dialog.

usando casillas de verificación, menús desplegables y cuadros de texto.

Converts either the selected measurement (via right click), or the entire page (via status bar icon).

Supported units: meters, feet, degrees Celsius, Fahrenheit, inches, centimeters, kilometers, miles, km/h, mph, square meters, square feet, kg, lb, fl oz, milliliters, and more

Adds... -Icons, -Numbering, -Highlighting, -and more search options: 'By date' and 'By language' ...to your Google search results

Web Page Translation - Translates full web pages (over 2,000 different language pairs)

Text Translation - Translates text entered in the search box or selected on any web page

Language Resources - Over 90 language services (encyclopedias, text-to-speech, etc.)

El campo de búsqueda te permite consultar el contenido de Facebook desde cualquier página de internet.

Gracias a los iconos de la barra de herramientas sabrás cuántos toques, solicitudes de amistad o mensajes nuevos tienes

cuando tus amigos actualicen su estado, escriban una nota o interactúen contigo en Facebook aparecerá una ventana emergente para informarte.

mostrar solo las entradas no leídas o las de tus marcadores

mostrar un solo hilo o toda una carpeta,

mostrar los elementos por completo o solo los títulos