Desarrollo web

by MarSanMar

25 Add-ons in this Collection

Ghostery by Ghostery

Rated 4 out of 5 stars 1,267 reviews

1,599,693 users

Enjoy a faster, safer and cleaner browsing experience.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 256 reviews

402,304 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 939 reviews

567,451 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 222 reviews

572,986 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 638 reviews

597,293 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 134 reviews

118,924 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

309,053 users

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

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,195 reviews

246,621 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 164 reviews

174,839 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 341 reviews

163,680 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 99 reviews

80,113 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 Online HTML 5 validation, you need 0.962
http://users.skynet.be/mgueury/mozilla

URL Fixer by Wladimir Palant

Rated 4 out of 5 stars 102 reviews

15,747 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.

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 285 reviews

60,080 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 78 reviews

19,100 users

Check the validity of links on any webpage.
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