Webontwikkeling

Abonneren

ColorfulTabs Aanbevolen

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...

Waardering 4 van 5 sterren (985)
227.076 gebruikers

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.

Waardering 4 van 5 sterren (71)
221.208 gebruikers

SQLite Manager

Manage any SQLite database on your computer.

Waardering 5 van 5 sterren (37)
205.915 gebruikers

Awesome Screenshot Plus - Capture, Annotate & More Geen herstart

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!

Waardering 4 van 5 sterren (1.084)
204.326 gebruikers

Live HTTP Headers

View HTTP headers of a page and while browsing.

Waardering 4 van 5 sterren (155)
178.291 gebruikers

Quick Locale Switcher

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Waardering 3 van 5 sterren (82)
177.333 gebruikers

Image Zoom

Adds zoom and rotation functionality for images...

Waardering 4 van 5 sterren (330)
171.974 gebruikers

Text Link

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

Waardering 4 van 5 sterren (289)
161.134 gebruikers

MeasureIt

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

Waardering 4 van 5 sterren (333)
156.098 gebruikers

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.

Waardering 4 van 5 sterren (82)
151.532 gebruikers

Screengrab (fix version) Aanbevolen

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

Waardering 5 van 5 sterren (255)
148.053 gebruikers

Clear Cache Button

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

Waardering 4 van 5 sterren (129)
141.121 gebruikers

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.

Waardering 5 van 5 sterren (65)
138.209 gebruikers

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.

Waardering 4 van 5 sterren (50)
137.792 gebruikers

The Addon Bar (Restored) Geen herstart Aanbevolen

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

Waardering 5 van 5 sterren (272)
130.422 gebruikers

IE Tab +

Een verbeterde versie van IE Tab die het mogelijk maakt de browser-engine van Internet Explorer in Mozilla Firefox te gebruiken.

Waardering 3 van 5 sterren (83)
128.501 gebruikers

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.

Waardering 4 van 5 sterren (73)
111.462 gebruikers

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.

Waardering 3 van 5 sterren (192)
109.194 gebruikers

JSONView Geen herstart

Bekijk JSON-documenten in de browser.

Waardering 5 van 5 sterren (132)
107.813 gebruikers

Nimbus Screen Capture - editable screenshots Geen herstart Aanbevolen

Screen capture Web Page, selected region or whole browser window, edit screenshots and save the images to Local File or Google Drive. Edit screenshots in a very user-friendly interface with the different tools.

Waardering 5 van 5 sterren (168)
106.444 gebruikers