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QuickJava Em destaque

Allows quick enable and disable of Java, Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth.

Avaliado em 5 de 5 estrelas (204)
280.281 usuários

Text Link

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

Avaliado em 4 de 5 estrelas (244)
247.980 usuários

JavaScript Debugger

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

Avaliado em 4 de 5 estrelas (47)
241.073 usuários

SQLite Manager

Manage any SQLite database on your computer.

Avaliado em 5 de 5 estrelas (57)
215.620 usuários

Disconnect Em destaque

Make the web faster, more private, and more secure.

Avaliado em 5 de 5 estrelas (80)
213.765 usuários

Image Zoom

Adds zoom and rotation functionality for images...

Avaliado em 4 de 5 estrelas (310)
209.471 usuários

Live HTTP Headers

View HTTP headers of a page and while browsing.

Avaliado em 4 de 5 estrelas (136)
205.777 usuários

Awesome Screenshot Plus - Capture, Annotate & More Não precisa 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!

Avaliado em 4 de 5 estrelas (883)
205.082 usuários

IE Tab +

Uma versão estendida do complemento IE Tab, que habilita o uso do mencanismo de exibição do Internet Explorer dentro do Mozilla Firefox.

Avaliado em 3 de 5 estrelas (72)
189.765 usuários

MeasureIt

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

Avaliado em 4 de 5 estrelas (305)
174.329 usuários

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.

Avaliado em 5 de 5 estrelas (55)
153.953 usuários

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.

Avaliado em 3 de 5 estrelas (167)
147.743 usuários

Screengrab (fix version)

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

Avaliado em 5 de 5 estrelas (162)
130.502 usuários

RequestPolicy Em destaque

Controle pedidos entre domínios. Navegue com mais privacidade. Proteja-se contra ataques de referência cruzada.

Avaliado em 4 de 5 estrelas (180)
124.103 usuários

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.

Avaliado em 5 de 5 estrelas (62)
122.434 usuários

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.

Avaliado em 4 de 5 estrelas (60)
119.197 usuários

HttpFox

An HTTP analyzer addon for Firefox

Avaliado em 4 de 5 estrelas (154)
118.676 usuários

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.

Avaliado em 4 de 5 estrelas (67)
115.797 usuários

RefControl

Control what gets sent as the HTTP Referer on a per-site basis.

Avaliado em 4 de 5 estrelas (151)
106.540 usuários

IE View

Lets you load pages in IE with a single right-click, or mark certain sites to *always* load in IE.

Avaliado em 3 de 5 estrelas (146)
103.139 usuários