Essentials developer's tools

by BOSSoNe

8 Add-ons in this Collection

Web Developer by chrispederick

Rated 5 out of 5 stars 246 reviews

497,104 users

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

Tamper Data by Adam Judson

Rated 4 out of 5 stars 140 reviews

110,491 users

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

ReloadEvery by Jaap Haitsma

Rated 4 out of 5 stars 715 reviews

161,300 users

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 170 reviews

151,622 users

View HTTP headers of a page and while browsing.

YSlow by YSlow

Rated 3 out of 5 stars 215 reviews

82,764 users

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

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

21,557 users

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

HTML Regex Data Extractor by pdah

Rated 4 out of 5 stars 12 reviews

1,434 users

A Regular Expression testing tool
Allow RegExp developer to test the regular expression on the live HTML content. Useful for those who work on crawling website data.

Relaxed the HTML Validator by kukulich

Rated 2 out of 5 stars 4 reviews

33 users

"Relaxed" is a HTML validator which validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns.

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