Internet Utilities

Chrome Extensions Firefox Extensions Opera Extensions Safari Extensions Thunderbird Extensions
Fasterfox 3.9.8

A Firefox add-on that gives you performance and network tweaks for your browser

developer: RsCcman Production
version: 3.9.8
license: Donationware
updated: 2012-01-15
downloads: 102684
Firebug 1.10 Alpha 2 / 1.9.1 Beta 1 / 1.9.0

A Firefox add-on that gives you development tools for Firefox while you are browsing the internet

developer: Joe Hewitt
version: 1.10 Alpha 2 / 1.9.1 Beta 1 / 1.9.0
license: Donationware
updated: 2012-01-28
downloads: 31320
All Mangas Reader 1.2.19

Google Chrome extension that track manga's updates on a bunch of manga dedicated websites

developer: Duhoux Pierre-Louis
version: 1.2.19
license: Freeware
updated: 2011-03-27
downloads: 27240
Greasemonkey 0.9.15

A Firefox add-on that uses small bits of JavaScript to customize a webpage display

developer: Aaron Boodman
version: 0.9.15
license: MIT License
updated: 2012-01-29
downloads: 25611
Webpage Screenshot 5.3.1

A Google Chrome extension that lets you easily make screenshots

developer: Amina
version: 5.3.1
license: Donationware
updated: 2011-07-30
downloads: 17480
Phzilla 4.0.1 F

A Firefox add-on that acts like a protective screensaver

developer: InBasic
version: 4.0.1 F
license: Freeware
updated: 2011-12-13
downloads: 16109
FireFTP 2.0

Free, secure, cross-platform add-on FTP client for Firefox which provides easy and intuitive...

developer: Mime Cuvalo
version: 2.0
license: Donationware
updated: 2011-12-03
downloads: 14718
Torbutton 1.3.0

A Firefox add-on that allows you to easily enable/disable Tor

developer: Scott Squires & Mike Perry
version: 1.3.0
license: Donationware
updated: 2011-07-16
downloads: 13551
Popup Blocker Settings

Firefox add-on that allows you to manage your pop-up blocker settings

developer: Mike Hokenson
license: Freeware
updated: 2011-06-24
downloads: 11075
Keylogger 1.5

A Firefox add-on that allows you to log keystrokes in your browser

developer: Ben Hardin
version: 1.5
license: Freeware
updated: 2011-07-22
downloads: 10691
Change Quote and Reply Format

A Thunderbird add-on that changes the format of e-mails when you send a reply

developer: Paolo Kaosmos
license: Donationware
updated: 2011-11-22
downloads: 9674
BabelFish Instant Translation 1.96

A Firefox add-on that allows you to translate words with a doubleclick

developer: NettiCat
version: 1.96
license: Freeware
updated: 2011-06-25
downloads: 8644
Tampermonkey 2.3.2633 Beta / 2.3.2625

A small Google Chrome extension that makes you browser compatible with GreaseMonkey

developer: Jan Biniok
version: 2.3.2633 Beta / 2.3.2625
license: Donationware
updated: 2012-01-19
downloads: 8610
MoreFunctionsForAddressBook 0.6.5

A Thunderbird add-on that adds different features to your Address Book

developer: Paolo Kaosmos
version: 0.6.5
license: Donationware
updated: 2011-11-22
downloads: 8200
Selenium IDE 1.4.1

A Firefox integrated development environment for Selenium tests

developer: Shinya Kasatani
version: 1.4.1
license: Apache
updated: 2011-11-25
downloads: 7707
Orkut Manager 3.6.9 Beta 1 / 3.6.9

A Firefox add-on that lets you easily manage your Orkut account

version: 3.6.9 Beta 1 / 3.6.9
license: Donationware
updated: 2011-08-11
downloads: 6627
Modify Headers

A Firefox add-on that allows you to modify HTTP request header

developer: Gareth Hunt
license: Donationware
updated: 2011-12-10
downloads: 6311
Facebook PhotoZoom 1.9

Firefox add-on that lets you zoom pictures on Facebook on the fly

developer: Carlo Casta
version: 1.9
license: GPL
updated: 2011-07-23
downloads: 5953
Typograf 1.17

Firefox add-on that allows you to process typographic texts

developer: Maxim Mazin
version: 1.17
license: GPL
updated: 2011-05-27
downloads: 5719
NicoFox 0.9

A Firefox extension that enables you to download videos from Nico Nico Douga

developer: Hsiao-Ting Yu
version: 0.9
license: GPL
updated: 2012-01-15
downloads: 5636
ImTranslator 4.9

A Firefox add-on that provides multilingual capabilities for your browser

developer: Smart Link Corporation
version: 4.9
license: Donationware
updated: 2012-01-06
downloads: 5525
Zotero 2.1.8

A Firefox add-on that helps you manage your research sources

developer: Center for History and New Media
version: 2.1.8
license: Donationware
updated: 2011-06-16
downloads: 5509
Google Chrome to Phone Extension 2.3.1

A Google Chrome extension that enables you to send links from your browser to your Android...

developer: Google Chrome to Phone Extension Team
version: 2.3.1
license: Apache
updated: 2011-08-19
downloads: 5326
Auto Refresh Plus

Google Chrome extension that lets you automatically refresh the current tab

license: Donationware
updated: 2011-03-17
downloads: 4829
VideoSurf Videos at a Glance 0.78

A Firefox add-on that allows you to enhance your online video experience with VideoSurf's video...

developer: VideoSurf
version: 0.78
license: Freeware
updated: 2011-01-30
downloads: 4768
The Hype Machine Track Downloader 2.0

Lets you download tracks directly from The Hype Machine without leaving the watermark

developer: Jason Young
version: 2.0
license: GPL
updated: 2011-11-05
downloads: 4564
Fast Dial 3.4

Firefox add-on that gives you fast access to your favorite sites

developer: Telega
version: 3.4
license: GPL
updated: 2011-02-16
downloads: 4424
iMacros for Firefox

A Firefox extension that can automate the most repetitious tasks on the web

developer: iOpus Inc
license: Freeware
updated: 2011-11-26
downloads: 4295
Fluent CFD Search 2.0.0

Firefox add-on that helps you search software with ease

developer: Basant Sharma
version: 2.0.0
license: Freeware
updated: 2011-08-08
downloads: 4215
BetterPrivacy 1.68

A simple Firefox add-on that keeps you safe against cookies

developer: NettiCat
version: 1.68
license: Freeware
updated: 2012-01-25
downloads: 4186
BitTorrent WebUI

A Firefox add-on that automatically uploads torrent files to your favorite BitTorrent client's...

developer: Alexis Brunet
license: Donationware
updated: 2011-11-26
downloads: 4092
Silver Bird

A Google Chrome add-on that enables you to keep an eye on your Twitter account from any web...

developer: Cezar Sa Espinola
license: Freeware
updated: 2011-07-08
downloads: 4055
Rikaichan 2.04

A Firefox, SeaMonkey and Thunderbird add-on that helps you translate Japanese to English/German/French...

developer: Jonathan Zarate
version: 2.04
license: Donationware
updated: 2011-10-23
downloads: 3820
autoPrint 2.2.1

Thunderbird add-on that allows you to automatically print your incoming emails.

developer: Daniel Luttinger
version: 2.2.1
license: Freeware
updated: 2011-05-22
downloads: 3777
All-in-One Gestures 0.22.1

A Firefox add-on that allows you to execute commands using mouse gestures

developer: Marc Boullet
version: 0.22.1
license: Freeware
updated: 2011-07-14
downloads: 3643
Orkut Manager 0.3

A Google Chrome extension that provides you quick access to all the features in your Orkut...

developer: Swarnava Sengupta
version: 0.3
license: Freeware
updated: 2010-10-19
downloads: 3583
TV-FOX 9.0.1

Watch TV directly from your Firefox Browser using this add-on

developer: David Lorens
version: 9.0.1
license: Ad-supported
updated: 2012-01-30
downloads: 3578
Groove Shredder 1.14.8

A Grooveshark extension for Firefox

developer: Rohit Garg
version: 1.14.8
license: GPL
updated: 2011-08-21
downloads: 3442
Mozilla Archive Format 2.0.4

A Firefox add-on that allows you to save webpages completely in a single archive file

developer: Christopher Ottley
version: 2.0.4
license: Freeware
updated: 2012-01-04
downloads: 3412
Check4Change 1.9.3

A Firefox add-on that helps you check any webpage periodically for updates

developer: Ronen Zilberman
version: 1.9.3
license: Donationware
updated: 2011-11-25
downloads: 3388
Proxilla 1.1.0

A Firefox add-on that enables you to surf with ease through any Glype proxy

developer: Kevin Godell
version: 1.1.0
license: Donationware
updated: 2011-06-11
downloads: 3346

Google Chrome extension that provides you a new collection of Facebook smileys

developer: Mindspark
license: Freeware
updated: 2011-03-18
downloads: 3286
Google Scholar H-Index 2.3.5

A Firefox add-on that automatically displays some of the most known citation indices

developer: Agelin Bee
version: 2.3.5
license: Donationware
updated: 2012-01-22
downloads: 3281
NASA Night Launch 0.6.20111220

A Firefox dark theme inspired by STS-116 launch

developer: McDavis941
version: 0.6.20111220
license: Donationware
updated: 2011-12-29
downloads: 3207
ChromEdit Plus 2.9.6

A Firefox add-on that is a re-written version of ChromeEdit

developer: JNewbry
version: 2.9.6
license: Freeware
updated: 2011-08-19
downloads: 3084
Show my Password 2.1.1

A Firefox add-on that displays your password in readable letters

developer: NettiCat
version: 2.1.1
license: Freeware
updated: 2011-07-08
downloads: 2995
Case Changer

A Firefox add-on that easily converts the letters in any text written in a form or text field

developer: Cory Bohon
license: Donationware
updated: 2011-12-30
downloads: 2954
Firebug Lite for Safari

Simple extension that adds a Firebug Lite button in your Safari browser's toolbar

developer: Slice Factory
license: Freeware
updated: 2011-04-25
downloads: 2918
Stationery 0.7.8

A Thunderbird add-on that allows you to use HTML fields as templates for mail

developer: Lukasz Plominski
version: 0.7.8
license: Freeware
updated: 2012-01-26
downloads: 2909 GPX Downloader 1.120103

A Firefox add-on that downloads the currently displayed geocache in GPX format

developer: MMx
version: 1.120103
license: Freeware
updated: 2012-01-09
downloads: 2868