Desarrollo web

by MarSanMar

24 Add-ons in this Collection

Ghostery by Ghostery

Rated 5 out of 5 stars 1,359 reviews

1,354,197 users

Increase your browsing privacy, protection, and speed.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 268 reviews

311,226 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 994 reviews

434,226 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!

Web Developer by chrispederick

Rated 5 out of 5 stars 259 reviews

436,411 users

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 339 reviews

239,695 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 683 reviews

467,045 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...

Tamper Data by Adam Judson

Rated 4 out of 5 stars 145 reviews

98,559 users

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

URL Fixer by Wladimir Palant

Rated 4 out of 5 stars 106 reviews

10,893 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.

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,206 reviews

179,812 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 172 reviews

133,289 users

View HTTP headers of a page and while browsing.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 107 reviews

81,079 users

Wappalyzer is a browser extension that identifies software on websites.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 360 reviews

129,036 users

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

Html Validator by Marc Gueury

Rated 4 out of 5 stars 215 reviews

49,378 users

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 Online HTML 5 validation, you need 0.962
http://users.skynet.be/mgueury/mozilla

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 287 reviews

38,724 users

Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.

LinkChecker by Kevin Freitas

Rated 4 out of 5 stars 80 reviews

16,259 users

Check the validity of links on any webpage.
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