Web Development

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Google Adsense Checker Requires Restart

Google Adsense Checker can display the Adsense earnings on statusbar, it is similar to adsense notifier.

Rated 2 out of 5 stars (17)
2,293 users

User-Agent Switcher (revived)

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (6)
3,414 users

Full Screen for Firefox

Go full screen with one click on the button.

Rated 5 out of 5 stars (10)
1,001 users

Clear Console Requires Restart Featured

One click to clear your cache, cookies, history, html5/local storage, http logins, all of them or restart your browser with/without notifications.

Rated 4 out of 5 stars (68)
28,170 users

signTextJS plus

window.crypto.signText replacement plus enhancements

Rated 5 out of 5 stars (9)
34,053 users

No-Script Suite Lite (revived)

Blocks scripts (and more) on untrusted websites

Rated 4 out of 5 stars (3)
1,218 users

Canvas Defender

Instead of completely blocking canvas fingerprinting, Canvas Defender add-on creates a unique and persistent noise that hides your real canvas fingerprint. This add-on protects you while browsing both in normal and private mode.

Rated 4 out of 5 stars (10)
3,687 users

NewScrollbars (aka NoiaScrollbars) Requires Restart

The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".

Rated 5 out of 5 stars (90)
20,000 users

JSON Lite

Fast JSON viewer - highlights, shows items count/size, handles large files

Rated 4 out of 5 stars (9)
4,915 users

Ace Stream Web Extension Requires Restart

User Script Manager for Ace Stream desktop software

Rated 2 out of 5 stars (7)
12,191 users

FireMath Requires Restart

FireMath is an equation editor based on MathML, the mathematical markup language.

Find examples, FAQ, installation instructions and a discussion board at
http://www.firemath.info

Speed up scientific scripting! Improve your science!

Rated 4 out of 5 stars (12)
3,708 users

Emoji Keyboard Featured

A free extension of the web tool https://emojikeyboard.org. It helps input emoji in the web browser with an extensive search functionality.

Rated 5 out of 5 stars (64)
105,882 users

FB unseen

Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.

Rated 4 out of 5 stars (3)
2,457 users

Textise

Creates a text-only version of almost any web page. Great for accessibility, SEO and printing.

Rated 3 out of 5 stars (21)
4,549 users

XPath Checker Requires Restart

An interactive editor for XPath expressions.

Rated 5 out of 5 stars (22)
28,719 users

Policy Control (noScript, noCSS, noMedia, ...)

This extension helps you quickly disable and enable different types of resources such as JavaScript, CSS, and Media. The extension can be used to increase privacy as well as saving bandwidth by blocking unwanted contents.

Rated 4 out of 5 stars (11)
2,348 users

Copy Pure Text Requires Restart

Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.

Rated 4 out of 5 stars (15)
4,707 users

Seamless Print

Enables silent/unattended/kiosk printing without showing the print dialog.
With Seamless Print turned On, print requests go directly to the printer using any Print options already setup.
:: Contributions support http://mozilla.org/foundation ::

Rated 4 out of 5 stars (16)
5,439 users

TinyUrl Creator Requires Restart

Easy shrink any long URL or link in the page to something you can email or Twitter using the TinyUrl service with a single click in your browser.

Rated 3 out of 5 stars (158)
414 users

PopupSound Requires Restart

Plays a sound when a pop-up window is blocked. You can also configure a sound for other events such as clicking on a link or downloading a file. You can specify your own sounds in the configuration...

Rated 4 out of 5 stars (42)
125 users