MyCollection

by kj187

13 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,759 reviews

2,541,400 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 by chrispederick

Rated 5 out of 5 stars 203 reviews

637,771 users

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

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

281,922 users

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

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 153 reviews

189,302 users

View HTTP headers of a page and while browsing.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 327 reviews

161,941 users

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

JSONView by Ben Hollis

Rated 5 out of 5 stars 125 reviews

97,753 users

View JSON documents in the browser.

Modify Headers by Gareth Hunt

Rated 4 out of 5 stars 70 reviews

142,143 users

Add, modify and filter the HTTP request headers sent to web servers. This addon is particularly useful for Mobile web development, HTTP testing and privacy.

FirePHP by cadorn

Rated 4 out of 5 stars 45 reviews

63,290 users

FirePHP enables you to log to your Firebug Console using a simple PHP method call.

Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/

ShowIP by ShowIP Dev Team

Download Now

Experimental

Rated 3 out of 5 stars 282 reviews

89,159 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.

Converter by Bogdan Stăncescu

Rated 5 out of 5 stars 73 reviews

10,226 users

Contextual (inline) unit, timezone, and currency converter on any web site, plus custom conversions for offline text. Shopping assistant also included -- find the best deals online! (Currency conversions and shopping assistant disabled by default.)

Screengrab by Andy M

Rated 4 out of 5 stars 588 reviews

35,087 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.

TimeStamp Converter by Sogame

Rated 4 out of 5 stars 8 reviews

1,808 users

Converts dates and timestamps...

TimestampDecode by Peter 'deb00t' Nemšák

Rated 5 out of 5 stars 3 reviews

457 users

Treats the selected number as a timestamp and displays a decoded date/time

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

Recently Viewed