Desarrollo web

by MarSanMar

26 Add-ons in this Collection

Ghostery by José María Signanini, Brad McDermott

Rated 5 out of 5 stars 860 reviews

1,150,883 users

Protect your privacy. See who's tracking your web browsing and block them with Ghostery.

Web Developer by chrispederick

Rated 5 out of 5 stars 183 reviews

687,408 users

The Web Developer extension adds various web developer tools to the browser.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 198 reviews

421,730 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Flagfox by Dave G

Rated 5 out of 5 stars 581 reviews

795,226 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 840 reviews

707,677 users

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.

Check out my new project, FireSSH!

IE Tab by PCMan, yuoo2k

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

Tamper Data by Adam Judson

Rated 4 out of 5 stars 115 reviews

129,852 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 283 reviews

318,658 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 136 reviews

193,660 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 305 reviews

158,262 users

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

URL Fixer by Wladimir Palant

Rated 4 out of 5 stars 83 reviews

30,969 users

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 80 reviews

52,961 users

Wappalyzer is a browser extension that identifies software on websites.

Html Validator by Marc Gueury

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Firefox 23+, you need 0.958 (under review)
http://users.skynet.be/mgueury/mozilla

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 214 reviews

82,667 users

Show the IP address(es) of the current page in the status bar. It also allows querying custom information services by IP (right click) and hostname (left click), like whois, netcraft, etc. Additionally you can copy the IP address to the clipboard.

Greasefire by Steve Krulewitz, Erik Vold

Rated 4 out of 5 stars 159 reviews

22,846 users

Automatically find user scripts on Userscripts.org (requires Greasemonkey or Scriptish)
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