Markup Developer Addons

egilea: Vlad Random

18 Add-ons in this Collection

Firebug egilea: Joe Hewitt, Jan Odvarko, besteak

Rated 5 out of 5 stars 1.828 berrikuspen

2.370.282 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Web Developer egilea: chrispederick

Deskargatu orain


Rated 5 out of 5 stars 228 berrikuspen

545.410 users

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

Full Web Page Screenshots (♥♥♥♥♥) egilea: susbox

Rated 5 out of 5 stars 446 berrikuspen

301.363 users

FireShot makes full web page screenshots. Demo:

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

YSlow egilea: YSlow

Rated 3 out of 5 stars 203 berrikuspen

93.679 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. is the official open source website.

Html Validator egilea: 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

Firefinder for Firebug egilea: Robert Nyman

Rated 3 out of 5 stars 28 berrikuspen

23.354 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Dust-Me Selectors egilea: brothercake

Rated 4 out of 5 stars 83 berrikuspen

17.451 users

Dust-Me Selectors is development tool to remove unused CSS selectors.

Screengrab egilea: Andy M

Rated 4 out of 5 stars 587 berrikuspen

20.029 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

Print/Print Preview egilea: Patrick H. Lauke

Rated 4 out of 5 stars 62 berrikuspen

31.016 users

Replace the default "Print" button with the Mozilla Suite style "Print/Print Preview" toolbar button/menu...

Pixel Perfect egilea: Mike Buckley, Lorne Markham, besteak

Rated 4 out of 5 stars 102 berrikuspen

14.503 users

Pixel Perfect is a Firefox extension that allows web developers and designers to easily overlay a web composition with semi-transparent layers (images). These layers can be consequently used for per pixel comparison between the page and a layer.

Firecookie egilea: Jan Odvarko

Rated 4 out of 5 stars 61 berrikuspen

3.326 users

Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser

Firecookie is part of Firebug since Firebug 1.10

Inline Code Finder for Firebug egilea: Robert Nyman

Rated 4 out of 5 stars 14 berrikuspen

8.494 users

Inline Code Finder is an add-on to Firebug, to be able to find HTML elements with any of the below issues:

* Inline JavaScript events
* Inline style
* javascript: links

Detailed description can be found at

SenSEO egilea: Nico Steiner

Rated 4 out of 5 stars 41 berrikuspen

6.689 users

SenSEO is an extension checking the most important on-page-SEO-criteria and calculating a grade of how good your site fulfills these criteria.

It's All Text! egilea: Christian Höltje (A.K.A. docwhat)

Rated 4 out of 5 stars 195 berrikuspen

12.594 users

Edit textareas using an external editor, because it's all text!

Right click on a textarea, select "It's All Text!" and edit the text in the editor of your choice.

Alternatively, click on the edit buttons added for your convenience. Right click on ...

GridFox egilea: Eric Puidokas

Rated 4 out of 5 stars 18 berrikuspen

5.234 users

Draws a grid on top of a website
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