Search Results for tag "html"

Firebug No Restart

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...

Rated 5 out of 5 stars (1,791)
2,215,748 users

Web Developer Featured

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

Rated 5 out of 5 stars (217)
557,130 users

Html Validator

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

Rated 4 out of 5 stars (200)
58,344 users

Empty Cache Button

Cache clearing made easy. One click.

Rated 4 out of 5 stars (85)
65,320 users

Easy Copy Featured

Copy links to a page with one click, ready to paste anywhere else, eg. emails, blogs, forums and Twitter. Copy a single page, all open tabs or all links on a page.

Rated 5 out of 5 stars (28)
18,589 users

DOM Inspector

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (65)
138,644 users

Bamboo Feed Reader

Feed reader | RSS - ATOM - OPML

Rated 4 out of 5 stars (238)
18,250 users

Whois Lookup & Hosting & DNS & Site Flags Firefox

IP Whois Lookup & Website Reviews & Rating. Display country flag indicating website location. Alexa and Norton Antivirus Site Adviser. Supported: GoDaddy, NetworkSolutions, Dotster, 1and1, NameCheap, Register, Yahoo, 123-Reg, FatCow, Enom, FastHosts.

Rated 3 out of 5 stars (9)
6,263 users


LiveReload refreshes a web page when files change.

This extension is deprecated. The latest version is available at

Rated 4 out of 5 stars (12)
4,278 users

DuckDuckGo (HTML SSL)

DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (non-JS HTML version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!

Rated 5 out of 5 stars (5)
395 weekly downloads


An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

Rated 4 out of 5 stars (42)
3,273 users

View Source Chart

Inspect the DOM at lightning speed.

Rated 5 out of 5 stars (107)
14,708 users

HTML Desktop Notifications

Extension to add desktop notifications into firefox, the way it works with Chrome and Chromium Browser : works with gmail, gtalk (gmail chat),, and all other websites that use this technology.

Rated 4 out of 5 stars (52)
38,892 users

HTTP Tool No Restart

Submit http requests with varying headers, bodies etc

Rated 5 out of 5 stars (1)
1,756 users


CoLT (short for "Copy Link Text") makes it easy to copy either a link's text, or both the link text and its URL in a format you specify. This non-invasive extension simply appears as context menu items when you right-click a link. Fully customizable!

Rated 5 out of 5 stars (94)
7,467 users

Good Website Inspector

Good Website Inspector is an extended ruleset for YSLOW, a Firefox AddOn, to check source codes of HTML pages to get easy and fast hints to optimize the current page.

Rated 5 out of 5 stars (1)
2,425 users


Firebug extension to validate HTML.

Rated 3 out of 5 stars (10)
2,897 users

Custom Style Script No Restart

Add Custom JavaScript Codes or Styles to any Page.

Rated 5 out of 5 stars (2)
222 users


View and Edit source of HTML element...

Rated 3 out of 5 stars (20)
1,615 users


Display horizontal and vertical floating guides, exactly the way you use it in photoshop. Helps improving layout, placing elements in proper grids, laying out elements symmetrically and structure a design.

Rated 4 out of 5 stars (19)
5,032 users