Web Development

Subscribe

Default Responsive Design View No Restart

This add-on starts your browser in responsive design view by default.

Not yet rated
0 users
Updated May 5, 2015

Rewrite HTTP Headers (JS)

A light-weight (pseudo) rules-engine to easily modify HTTP headers in either direction

Rated 5 out of 5 stars (1)
48 users
Updated May 4, 2015

Twitter Bootstrap 3 Helper No Restart

Simple extension that inform about actual displaying column (xs, sm, md, lg) of Twitter Bootstrap 3.

Not yet rated
119 users
Updated May 4, 2015

Greasy Scripts No Restart

Helps you find user scripts for your favorite sites!

Rated 5 out of 5 stars (4)
2,862 users
Updated May 4, 2015

Pixel Perfect No Restart

Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.

Rated 4 out of 5 stars (99)
13,360 users
Updated May 4, 2015

Omnibug

Firebug extension for web analytics testing and debugging

Rated 4 out of 5 stars (3)
3,957 users
Updated May 4, 2015

FlashDisable No Restart

Toolbar button that lets you disable and re-enable Flash with just one click.

Rated 5 out of 5 stars (38)
25,386 users
Updated May 2, 2015

Coder's Calendar No Restart

Shows a list of live & upcoming Programming Contests happening on various popular competitive programming platforms with the feature to add these events to your google calendar.
Happy Coding!

Rated 5 out of 5 stars (1)
84 users
Updated May 1, 2015

Screencast extension for BeMyApp Ideation No Restart

Screencast extension for BeMyApp Ideation

Not yet rated
2 users
Updated April 30, 2015

Tab Data (+Memory usage) No Restart

Provides user with tab related stats and memory usage

Rated 4 out of 5 stars (24)
8,418 users
Updated April 30, 2015

Plain Text Copier No Restart

Copy only the plain text from the selected text

Not yet rated
3 users
Updated April 29, 2015

Firefox-on-OS-X Label No Restart

Add a text label* to your Firefox icons in OS X

*To set or edit your label, go to the Add-on's preferences (press Apple-Shift-a)

Rated 4 out of 5 stars (1)
4 users
Updated April 28, 2015

Disable WebRTC No Restart

WebRTC exposes your internal network IP(s), without user interaction.

Rated 4 out of 5 stars (13)
9,517 users
Updated April 28, 2015

Scroll Up Folder

Goes up a folder of a website.

Rated 5 out of 5 stars (25)
687 users
Updated April 28, 2015

Zoom for Firefox

Zoom in or out on web content using the zoom button for more comfortable reading.

Not yet rated
24 users
Updated April 28, 2015

Classic Toolbar Buttons No Restart Featured

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Rated 5 out of 5 stars (140)
40,459 users
Updated April 28, 2015

ColorfulTabs Featured

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

Rated 4 out of 5 stars (969)
237,370 users
Updated April 28, 2015

Add2WeeklyJS No Restart

Quickly add a link to BrazilJS weekly suggestions.

Not yet rated
2 users
Updated April 27, 2015

Awesome Screenshot Plus - Capture, Annotate & More No Restart

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

Rated 4 out of 5 stars (1,058)
194,460 users
Updated April 27, 2015

Screengrab (fix version) Featured

Screengrab! saves webpages as images.
0.98 released!
New features: upload to internet

Rated 5 out of 5 stars (241)
138,329 users
Updated April 27, 2015