Dev Tools

by Shelke2

8 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,766 reviews

2,670,604 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...

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,570 reviews

1,497,147 users

The first and only download manager/accelerator built inside Firefox!

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 238 reviews

424,863 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Web Developer by chrispederick

Rated 5 out of 5 stars 208 reviews

656,792 users

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

Tile Tabs by DW-dev

Rated 5 out of 5 stars 218 reviews

78,446 users

Displays tabs in tiled layouts in Firefox. Arrange tiles horizontally, vertically or in a grid. Resize tiles by dragging splitter bars. Tabs and links can be dragged to open in other tiles. Supports multiple tiled layouts. Works with tab groups.

Multi Links by Grizzly Ape

Download Now

Experimental

Rated 4 out of 5 stars 176 reviews

30,883 users

Multi Links lets you open, copy or bookmark multiple links at the same time rather than having to do them all individually.

LinkChecker by Kevin Freitas

Rated 4 out of 5 stars 76 reviews

20,349 users

Check the validity of links on any webpage.

GA? - Is Google Analytics Installed by TwisterMc

Rated 4 out of 5 stars 24 reviews

3,074 users

Checks to see if Google Analytics is installed on any given page.

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