Desarrollo web

by MarSanMar

26 Add-ons in this Collection

Ghostery by José María Signanini, Brad McDermott

Rated 5 out of 5 stars 1,157 reviews

1,388,334 users

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

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 245 reviews

373,450 users

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

Web Developer by chrispederick

Rated 5 out of 5 stars 213 reviews

554,385 users

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

FireFTP by Mime Čuvalo

Rated 4 out of 5 stars 926 reviews

539,983 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!

Flagfox by Dave G

Rated 5 out of 5 stars 632 reviews

610,736 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 128 reviews

113,906 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

249,595 users

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

IE Tab by PCMan, yuoo2k

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 155 reviews

170,758 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 330 reviews

147,017 users

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

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 97 reviews

68,220 users

Wappalyzer is a browser extension that identifies software on websites.

URL Fixer by Wladimir Palant

Rated 4 out of 5 stars 100 reviews

19,549 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.

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 284 reviews

73,951 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 76 reviews

17,234 users

Check the validity of links on any webpage.
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