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ColorfulTabs Destacados

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

Puntuado con 4 de 5 estrellas (969)
251.853 usuarios

Quick Locale Switcher

Le permite cambiar rápidamente el idioma (interfaz de usuario, diccionario ortográfico y contenido de la página) en sus aplicaciones Mozilla.

Puntuado con 3 de 5 estrellas (81)
236.624 usuarios

Awesome Screenshot Plus - Capture, Annotate & More Sin reiniciar

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

Puntuado con 4 de 5 estrellas (1.047)
209.815 usuarios

SQLite Manager

Manage any SQLite database on your computer.

Puntuado con 5 de 5 estrellas (30)
207.530 usuarios

Text Link

Allows URI texts written in webpages to be loaded by double clicks.

Puntuado con 4 de 5 estrellas (270)
195.295 usuarios

Live HTTP Headers

View HTTP headers of a page and while browsing.

Puntuado con 4 de 5 estrellas (153)
190.275 usuarios

Image Zoom

Añade funcionalidad de zoom a imágenes

Puntuado con 4 de 5 estrellas (327)
186.311 usuarios

JavaScript Debugger

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Puntuado con 4 de 5 estrellas (48)
164.559 usuarios

MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Puntuado con 4 de 5 estrellas (327)
160.848 usuarios

Clear Cache Button

Adds a clear cache toolbar button. After installing the extension, find the clear cache button in the toolbar customization...

Puntuado con 4 de 5 estrellas (128)
157.779 usuarios

IE Tab +

Versión mejorada de IETab que te permite ver páginas con el motor de Internet Explorer dentro de tu navegador Mozilla/Firefox.

Puntuado con 3 de 5 estrellas (82)
156.368 usuarios

Screengrab (fix version) Destacados

Screengrab! saves webpages as images.
0.98 released!
New features: upload to internet

Puntuado con 5 de 5 estrellas (239)
150.373 usuarios

DOM Inspector

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Puntuado con 5 de 5 estrellas (60)
147.934 usuarios

The Addon Bar (Restored) Sin reiniciar Destacados

Gives you a place to put all your add-on buttons without over-crowding the navigation bar.

Puntuado con 5 de 5 estrellas (256)
139.271 usuarios

Modify Headers

Add, modify and filter the HTTP request headers sent to web servers. This addon is particularly useful for Mobile web development, HTTP testing and privacy.

Puntuado con 4 de 5 estrellas (70)
136.754 usuarios

RESTClient, a debugger for RESTful web services.

Notice: some important features (XML indentation and load old saved requests) are missing in version 2.0.0, please update to version 2.0.1.

Please follow the link ("View other versions") below To install version 2.0.1.

Puntuado con 4 de 5 estrellas (75)
134.651 usuarios

RequestPolicy Destacados

Controla las peticiones de dominio cruzado que son permitidas. Mejora la privacidad de tu navegacion. Te protege de ataques de Falsificacion de peticion de sitios cruzados (Cross-Site Request Forgery) y otros ataques similares.

Puntuado con 4 de 5 estrellas (209)
122.462 usuarios

YSlow

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

Puntuado con 3 de 5 estrellas (181)
121.300 usuarios

Cookies Manager+

Cookies manager to view, edit and create new cookies. It also shows extra information about cookies, allows edit multiple cookies at once and backup/restore them.

Puntuado con 4 de 5 estrellas (69)
110.561 usuarios

HttpFox

An HTTP analyzer addon for Firefox

Puntuado con 4 de 5 estrellas (159)
104.914 usuarios