Firefox Extension

The best Firefox extensions list:

Blogging:

• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• Clipmarks - With Clipmarks, you can clip the best parts of web pages. Whether it’s a paragraph, sentence, image or video, you can capture just the pieces you want without having to bookmark the entire page.
• Sage - Sage is a lightweight RSS and Atom feed aggregator extension for Mozilla Firefox. It's got a lot of what you need and not much of what you don't.
• Jeteye - Jeteye is a unique Web-based application and service that is designed for the next generation of enterprise and consumer use of the Web. Jeteye changes how we interact with the web, in an era where communication and social computing are more powerful than ever.
• Performancing - Performancing for Firefox is a full featured blog editor that sits right in your Firefox browser and lets you post to your blog easily. You can drag and drop formatted text from the page you happen to be browsing, and take notes as well as post to your blog.
• TorrentBar - BitTorrent File Search Toolbar for Firefox. Allows to search numerous sites in a matter of minutes for needed torrent files.
• Wizz RSS News Reader - A fairly good RSS and Atom news reader.
• MeasureIt - Draw out a ruler to get the pixel width and height of any elements on a webpage.
• Show MyIP - Displays your current IP address. If you have a static IP (Internet Protocol) address, this number will stay the same each time you visit. If you have a dynamic IP, the number will change each time you log on to the internet (or your ISP assigns a new IP).
• NewsFox - RSS/Atom News Reader.

Developer Tools:

• FireFTP - FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
• IE Tab - IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox.
• Web Developer - Adds a menu and a toolbar with various web developer tools.
• Firebug - 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.
• Greasemonkey - Allows you to customize the way a webpage displays using small bits of JavaScript.
• Tab Mix Plus - Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
• Image Zoom - Easily zoom in, zoom out, fit image to screen or set custom zoom on individual images within a web page. All this can be done by using the context menu or a combination of mouse buttons and scroll wheel. Handy to see the finer details of smaller pics or to make very large pics fit within your screen.
• ColorZilla - Advanced Eyedropper, ColorPicker, Page Zoomer and other colorful goodies.
• IE View - Lets you load pages in IE with a single right-click, or mark certain sites to *always* load in IE. Useful for incompatible pages, or cross-browser testing.
• iMacros - Automate your web browser. Record and replay repetitious work.

Editing and Forms:

• Performancing - Performancing for Firefox is a full featured blog editor that sits right in your Firefox browser and lets you post to your blog easily. You can drag and drop formatted text from the page you happen to be browsing, and take notes as well as post to your blog.
• Gmail Skins - Skins and other extra features for Gmail.
• InFormEnter - InFormEnter adds a small, clickable icon next to every input field in a web form, from where you can select the item to be inserted - no typing required. You can configure it to display your frequently used information such as name, email, address and whatever else you want to be available from the form menu.
• Snipshot - Edit any picture on the web with one right-click. The picture will be brought into the online image editor Snipshot where you can crop, resize, rotate or recolor it, then save it into a variety of formats (JPG, GIF, PNG, PDF) or to Flickr or a free image host. For faster workflow, you can optionally enhance the image as it enters Snipshot or resize it to fit a set of custom dimensions.
• JSView - All browsers include a "View Source" option, but none of them offer the ability to view the source code of external files. Most websites store their javascripts and style sheets in external files and then link to them within a web page's source code. Previously if you wanted to view the source code of an external javascript/css you would have to manually look through the source code to find the url and then type that into your browser.
• Password Exporter - This extension allows you to export and import your saved passwords and rejected sites between computers. Your passwords will be exported to an XML or CSV file and can be encrypted.
• AI Roboform Toolbar - Add RoboForm Toolbar to Firefox.
• DejaClick - DéjàClick is a web recorder and Super Bookmark utility designed exclusively for Firefox. You can record and bookmark your browser activities, then with a single click, replay the entire sequence all over again. Got a package or an order you want to track? Have a favorite category at an online auction site? Tired of going through the steps to log into your e-mail? Use DéjàClick by AlertSite to automatically access any final URL. Also works great for quickly producing web application test scripts.
• Unofficial Myspace Toolbar - Automatically login to Myspace, instantly access your messages, view hidden comments, create styled comments/bulletins and more with this intuitive and customizable toolbar!
• FireFoxMenuButtons - Adds 41 new Buttons (duplicating of menu strings) from Firefox Menu on the Toolbar!

Image Browsing:

• FlashGot - Download one link, selected links or all the links of a page together at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
• DownThemAll - The first and only download manager/accelerator built inside Firefox!
• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system.
• Firefox Companion for Kodak EasyShare Gallery - Organizing and sharing your pictures is easier than ever with Firefox Companion for Kodak EasyShare Gallery. Upload photos directly to your Kodak EasyShare Gallery, all within your browser. Drag, drop and arrange pictures adding photo titles, and create albums by multi-selecting photos - all of this without interrupting your Internet browsing. Co-developed by Kodak, it also includes other popular photo services.
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.
• DownloadHelper - DownloadHelper is a tool for web content extraction. Its purpose is to capture video and image files from many sites.
• Firefox Showcase - Showcase provides a new way to manage your Firefox tabs and windows by showing them as thumbnails in a single window, tab or sidebar. Includes a find bar that will filter the thumbnails, and the capability to select the thumbnails in the same way you would select files in your system.
• Image Zoom - Adds zoom functionality for images.
• Send 2 Cellphone - Send2Cellphone provides a simple way to send images from web pages directly to mobile phones via free Send2Cellphone service. Simply right click any image on any web page and select "Send2Cellphone" from the context menu. After transferring the picture to your cell phone you can view it, use it as a wallpaper or send to a friend via MMS.

Message Reading:

• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Mouse Gestures - Allows you to execute common commands (like page forward/backward, close tab, new tab) by mouse gestures drawn over the current webpage, without reaching for the toolbar or the keyboard.
• Gmail Manager - Allows you to manage multiple Gmail accounts and receive new mail notifications. Displays your account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.
• ReminderFox - ReminderFox is an extension that displays and manages lists of date-based reminders and ToDo's. ReminderFox does not seek to be a full-fledged calendar system. In fact, the target audience is anybody that simply wants to remember important dates (birthdays, anniversaries, etc) without having to run a fat calendar application.
• NewsFox - RSS/Atom News Reader.
• Yahoo! Mail Notifier - This extension notifies you when new messages arrive in your Yahoo mailbox.
• Gmail Skins - Skins and other extra features for Gmail.
• WOT - WOT helps you avoid disingenuous Internet content by allowing you to learn from others' experiences. WOT shows you website reputations on your browser, telling you how much other users trust a website. This helps you make better decisions while browsing and avoid phishing, malware, and other types of fraud. Reputations can also be added to web search results, Gmail, Wikipedia, and other selected sites.
• Temporary Inbox - This extension generates random disposable email addresses. You can use these email addresses for registration in forums, adult sites or whereever.
• infoRSS - Displays RSS, Atom, parsed HTML and NNTP feed in a scrolling area the status bar. Compatible with podcasting RSS which can be downloaded directly.
  It's also a good Gmail notifier.

News Reading:

• Forecastfox - Get international weather forecasts from AccuWeather.com, and display it in any toolbar or statusbar with this highly customizable and unobtrusive extension.
• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Sage - Sage is a lightweight RSS and Atom feed aggregator extension for Mozilla Firefox. It's got a lot of what you need and not much of what you don't.
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.
• TorrentBar - BitTorrent File Search Toolbar for Firefox. Allows to search numerous sites in a matter of minutes for needed torrent files.
• Wizz RSS News Reader - A fairly good RSS and Atom news reader.
• ReminderFox - ReminderFox is an extension that displays and manages lists of date-based reminders and ToDo's. ReminderFox does not seek to be a full-fledged calendar system. In fact, the target audience is anybody that simply wants to remember important dates (birthdays, anniversaries, etc) without having to run a fat calendar application.
• Forecastfox Enhanced - Enhanced version of the popular Forecastfox extension (forecastfox.mozdev.org) by Jon Stritar and Richard Klien. This adds 12 improved radar images for US locations and 4 for international locations and the ability to supply a URL to use images from other sites.
• NewsFox - RSS/Atom News Reader.
• 1-ClickWeather - Because weather is important to you everyday... weather.com offers you instant local weather conditions, alerts, radar in motion, satellite maps, and forecasts all within your Firefox browser.

Tabbed Browsing:

• IE Tab - IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox. This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
• Tab Mix Plus - Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
• Firefox Showcase - Showcase provides a new way to manage your Firefox tabs and windows by showing them as thumbnails in a single window, tab or sidebar. Includes a find bar that will filter the thumbnails, and the capability to select the thumbnails in the same way you would select files in your system.
• Colorful Tabs - 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.
• Session Manager - Session Manager saves and restores the state of all windows - either when you want it or automatically at startup and after crashes. Additionally it offers you to reopen (accidentally) closed windows and tabs. If you're afraid of losing data while browsing - this extension allows you to relax.
• Tabbrowser Preferences - Enables enhanced control for some aspects of tabbed browsing.
• Advanced Dork - Advanced Dork: gives quick access to Google's Advanced Operators directly from the context menu.
• ChromaTabs - Colors browser tabs based on the site loaded. For example, visiting mozilla.org will make the tab blue, and cnn.com will make the tab green.
• Tab Catalog - Shows thumbnail-style catalog of tabs.
• Tab Control - Take control of your tabs!

XUL Applications:

• FireFTP - FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
• FoxyTunes - Do you listen to Music while surfing the Web? Now you can control your favorite media player without ever leaving the browser and more.
• DownThemAll - DownThemAll is all you can desire from a download manager: it features an advanced accelerator that increases speed up to 400% and it allows you to pause and resume downloads at any time!
• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system. The interface will make your Gmail account look like a FTP host.
• ChatZilla - A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
• Jeteye - Jeteye is a unique Web-based application and service that is designed for the next generation of enterprise and consumer use of the Web. Jeteye changes how we interact with the web, in an era where communication and social computing are more powerful than ever.
• Performancing - Performancing for Firefox is a full featured blog editor that sits right in your Firefox browser and lets you post to your blog easily. You can drag and drop formatted text from the page you happen to be browsing, and take notes as well as post to your blog.
• AllPeers - Share your files privately and securely. Chat with your friends.
• Wizz RSS News Reader - A fairly good RSS and Atom news reader.
• ReminderFox - ReminderFox is an extension that displays and manages lists of date-based reminders and ToDo's. ReminderFox does not seek to be a full-fledged calendar system. In fact, the target audience is anybody that simply wants to remember important dates (birthdays, anniversaries, etc) without having to run a fat calendar application.

Bookmarks:

• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• Foxmarks Bookmark Synchronizer - If you use Firefox on more than one computer, you'll want Foxmarks. Install Foxmarks on each computer, and it will work silently in the background to keep your bookmarks synchronized. As a bonus, log in to my.foxmarks.com from any computer anywhere to access your bookmarks.
• del.icio.us Bookmarks - This extension integrates your browser with del.icio.us (http://del.icio.us/), the leading social bookmarking service on the Web. It does this by augmenting the bookmarking functionality in Firefox with an enhanced experience.
• Clipmarks - With Clipmarks, you can clip the best parts of web pages. Whether it’s a paragraph, sentence, image or video, you can capture just the pieces you want without having to bookmark the entire page.
• Tab Mix Plus - Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
• Yoono - Yoono instantly suggests similar sites, blog notes and people sharing the same interests while you are surfing, for each page you open. Zero effort required - no more tagging, typing keywords or changing interface. Let Yoono bring you the best that others have discovered.
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.
• Jeteye - Jeteye is a unique Web-based application and service that is designed for the next generation of enterprise and consumer use of the Web. Jeteye changes how we interact with the web, in an era where communication and social computing are more powerful than ever.
• Firefox Showcase - Showcase provides a new way to manage your Firefox tabs and windows by showing them as thumbnails in a single window, tab or sidebar. Includes a find bar that will filter the thumbnails, and the capability to select the thumbnails in the same way you would select files in your system.
• iMacros - Automate your web browser. Record and replay repetitious work.

Entertainment:

• FoxyTunes - Do you listen to Music while surfing the Web? Now you can control your favorite media player without ever leaving the browser and more.
• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system.
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.
• Fast Video Download - Fast Video Download can save embedded video files from video-hosting servers.
• MediaPlayerConnectivity - Allow you to launch embed video of website in an external application with a simple click.
• Torrent Finder Toolbar - Torrent Finder Toolbar is a torrent search toolbar for Firefox, which enables users to search over 100 top torrent sites and trackers from their Firefox browser the same way they used to search using http://torrent-finder.com form. It allows users to search a single site, search all sites on one page, or open the sites in Firefox tabs.
• TorrentBar - BitTorrent File Search Toolbar for Firefox. Allows to search numerous sites in a matter of minutes for needed torrent files.
• FoxGame - Enhance user experience with O-game (now works in every o-game version)
  Adds a lot of features to the webgame O-game. It also integrates Database features inside the game. O-Game, is a real-time spacial browser game.
• Wizz RSS News Reader - A fairly good RSS and Atom news reader.

Kiosk Browsing:

• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system.
• All-in-One Sidebar - All-in-One Sidebar (AiOS) is a sidebar control, inspired by Opera's. Click on the left edge of your browser window to open the sidebar and get easy access to all your panels. It lets you quickly switch between sidebar panels, view dialog windows such as downloads, extensions, and more in the sidebar, or view source or websites in the sidebar.
• Dictionary Tooltip - Press ctrl+shift+D (or) double-click (or) right-click after selecting a word to see its meaning. This extension is ideal for those who doesn't like to switch their window to see the meaning of a word.
• FireFoxMenuButtons - Adds 41 new Buttons (duplicating of menu strings) from Firefox Menu on the Toolbar! Look for this buttons (after installing) on the "Customize toolbar" (Menu/View/Toolbars/Customize...).
• Public Fox - Tired of cleaning stuff people download? Use this to limit file downloading. Prevent browser changes, block unwanted Web Sites.
• Firefox Google Bookmarks - Creates a menu to access google bookmarks from any computer. Needs Google Account to use this extension.
• Personal Menu - Feel tired of the conservative menus, and have tried to put them into a single menu but never want to waste time on one more click?
• Full Fullscreen - Hides remaining toolbars that the normal fullscreen functionality does not. Hiding the tab bar, as well as starting up on fullscreen, are configurable from the settings dialog. Licensed under MPL.
• gladder - Get over Great Firewall with Great Ladder!
• R-kiosk - Real Kiosk is a Firefox 2.0 extension that defaults to full screen, disables all menus, toolbars, key commands and right button menus. Alt+Home still takes you home.

Miscellaneous:

• Adblock Plus - Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them. Right-click on a banner and choose "Adblock" from the context menu - the banner won't be downloaded again.
• NoScript - Winner of the "2006 PC World World Class Award", this tool provides extra protection to your Firefox. It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site.
• Forecastfox - Get international weather forecasts from AccuWeather.com, and display it in any toolbar or statusbar with this highly customizable and unobtrusive extension.
• IE Tab - Embedding Internet Explorer in tabs of Mozilla/Firefox. This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
• FoxyTunes - Do you listen to Music while surfing the Web? Now you can control your favorite media player without ever leaving the browser and more.
• Fasterfox - Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Map+ - View a map of a selected address in Firefox without changing windows or tabs using the right click command.
• Clipmarks - With Clipmarks, you can clip the best parts of web pages. Whether it’s a paragraph, sentence, image or video, you can capture just the pieces you want without having to bookmark the entire page.

Privacy and Security:

• NoScript - Winner of the "2006 PC World World Class Award", this tool provides extra protection to your Firefox. It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site.
• Fasterfox - Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Torbutton - Torbutton provides a button to easily enable or disable the browser's use of Tor.
• Flashblock - Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on it.
• FoxyProxy - FoxyProxy is an advanced proxy management tool that completely replaces Firefox's proxy configuration.
• SwitchProxy Tool - SwitchProxy lets you manage and switch between multiple proxy configurations
  quickly and easily. You can also use it as an anonymizer to protect your
  computer from prying eyes.
• iMacros - Automate your web browser. Record and replay repetitious work.
• Firefox Extension Backup Extension - FEBE allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up - it will actually rebuild your extensions individually into installable .xpi files. Now you can easily synchronize your office and home browsers.
• CustomizeGoogle - CustomizeGoogle is a Firefox extension that enhance Google search results by adding extra information (like links to Yahoo, Ask.com, MSN etc) and removing unwanted information (like ads and spam).

Web Annoyances:

• Adblock Plus - Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them.
• NoScript - Winner of the "2006 PC World World Class Award", this tool provides extra protection to your Firefox. It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site.
• IE Tab - Embedding Internet Explorer in tabs of Mozilla/Firefox. This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
• Fasterfox - Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
• Greasemonkey - Allows you to customize the way a webpage displays using small bits of JavaScript.
• Cooliris Previews - Cooliris Previews for Firefox gives you the power to browse faster and send links instantly.
• Tab Mix Plus - Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
• PDF Download - Allows to choose if you want to view a PDF file inside the browser (as PDF or HTML), if you want to view it outside Firefox with your default or custom PDF reader, or if you want to download it!
• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system.
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.

Contacts:

• JAJAH - Web-Activated Telephony - The JAJAH extension for Firefox integrates call functionality into your browser. Phone numbers on web pages are automatically detected and highlighted. When clicked, JAJAH initiates a phone call from your phone - landline or mobile - to the desired destination.
• LinkedIn Companion - LinkedIn is an online network of more than 7.5 million experienced professionals. LinkedIn helps you be more effective in your daily work and opens doors to opportunities by helping you develop and manage your network of business contacts.
• ReminderFox - ReminderFox is an extension that displays and manages lists of date-based reminders and ToDo's. ReminderFox does not seek to be a full-fledged calendar system. In fact, the target audience is anybody that simply wants to remember important dates (birthdays, anniversaries, etc) without having to run a fat calendar application.
• Email This - Email This! (formerly known as GMail This!) will send your recipient the link, title, & highlighted text of the page you are viewing using GMail, Yahoo, and Stand-Alone Mail Clients like Outlook Express, Thunderbird, & More!
• FireFoxMenuButtons - Adds 41 new Buttons (duplicating of menu strings) from Firefox Menu on the Toolbar! Look for this buttons (after installing) on the "Customize toolbar" (Menu/View/Toolbars/Customize...).
• GTDGmail - GTDGmail discreetly integrates into Gmail making it even more suitable as a GTD tool.
• Facebook Toolbar - Integrate your Facebook life into your browser.
• WataCrackaz AutoSMS - Watacrackaz AutoSMS toolbar. Send and receive SMS text messages to and from cellphones around the world.
• Skype Sidebar - Skype Sidebar allows you to call, add, find, chat, and voice mail other contacts without even leaving your browser. Skype Sidebar lets you see the status of your contacts and quickly chat with them. It saves you time, allows you to quickly send files, and also view contacts information. You can even start conference calls. You can customize the width of the Skype object.
• SMS Send - ABC SMS Send is a toolbar that allows you to send SMS text messages to over 170 countries.

Download Tools:

• Download Statusbar - View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
• FlashGot - Download one link, selected links or all the links of a page together at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
• VideoDownloader - Download videos from Youtube, Google, Metacafe, iFilm, Dailymotion, Pornotube... and other 60+ video sites! And all embedded objects on a webpage (movies, mp3s, flash, quicktime, etc).
• FireFTP - FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
• DownThemAll - The first and only download manager/accelerator built inside Firefox!
• PDF Download - Allows to choose if you want to view a PDF file inside the browser (as PDF or HTML), if you want to view it outside Firefox with your default or custom PDF reader, or if you want to download it!
• Media Pirate - The video downloader - More and more websites publish their videos in those neat flash players. But if you want to download a video there is no download link. This doesn't mean that you can't download it. Media Pirate creates a download link for you!
• Gspace - This extension allows you to use your Gmail Space (2.8 GB and growing) for file storage. It acts as an online drive, so you can upload files from your hard drive and access them from every Internet capable system.
• Firefox Companion for Kodak EasyShare Gallery - Organizing and sharing your pictures is easier than ever with Firefox Companion for Kodak EasyShare Gallery. Upload photos directly to your Kodak EasyShare Gallery, all within your browser. Drag, drop and arrange pictures adding photo titles, and create albums by multi-selecting photos - all of this without interrupting your Internet browsing.

Humor:

• Tab Effect - Add effects when current tab is changed.
• Splash - Adds a splash screen to most Mozilla and Mozilla Based products.
• Firefox Google Bookmarks - Creates a menu to access google bookmarks from any computer. Needs Google Account to use this extension.
• President Bush Countdown - A timer that counts down the number of days remaining in George W. Bush's term as President of the United States. Clicking on the countdown shows a more detailed timer and enables people to air their grievances on newprez.com. An icon shows when there is a new topic for discussion or a vote.
• Usage Counter - Tells you how much time you have spent using Firefox and browsing sites. (Previously known as Wasted Time Counter).
• Bork Bork Bork - View web pages or mail as spoken by the Swedish Chef like this: "Feeoo veb peges oor meeel es spukee by zee Svedeesh Cheff."
• Anglais - This extension provides proverbs and jokes to better learn English.
• STOP! Hammer Time - Adds 'STOP! Hammer Time!' functionality to Firefox - Simply go to "view -> toolbars -> customize" and swap your stop button for the 'STOP! Hammer Time!' button. Now you can hear MC Hammer whenever a page needs stopping!
• Sun Cult - Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset Times.
• ghostfox - Stylises Firefox into Ghostzilla (The Invisible Browser) style. Move your mouse away and firefox disappears. Then move it towards the left edge of the screen, back to the right and again to the left and voila - firefox is back again, discretely blended with ur original application to appear like a part of it.

Navigation:

• IE Tab - Embedding Internet Explorer in tabs of Mozilla/Firefox. This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
• Fasterfox - Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• Map+ - View a map of a selected address in Firefox without changing windows or tabs using the right click command.
• Tab Mix Plus - Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
• Yoono - Yoono instantly suggests similar sites, blog notes and people sharing the same interests while you are surfing, for each page you open. Zero effort required - no more tagging, typing keywords or changing interface. Let Yoono bring you the best that others have discovered.
• PDF Download - Allows to choose if you want to view a PDF file inside the browser (as PDF or HTML), if you want to view it outside Firefox with your default or custom PDF reader, or if you want to download it!
• BlueOrganizer - The blueorganizer is smart browsing and personalization technology for Firefox. It makes the browser aware of everyday objects like books, movies, wines, restaurants and much more. The blueorganizer helps you automatically collect these object from many popular sites, manage them and instantly find related information.
• Firefox Showcase - Showcase provides a new way to manage your Firefox tabs and windows by showing them as thumbnails in a single window, tab or sidebar. Includes a find bar that will filter the thumbnails, and the capability to select the thumbnails in the same way you would select files in your system.
• Mouse Gestures - Allows you to execute common commands (like page forward/backward, close tab, new tab) by mouse gestures drawn over the current webpage, without reaching for the toolbar or the keyboard.

Website Integration:

• VideoDownloader - Download videos from Youtube, Google, Metacafe, iFilm, Dailymotion, Pornotube... and other 60+ video sites! And all embedded objects on a webpage (movies, mp3s, flash, quicktime, etc).
• StumbleUpon - StumbleUpon lets you "channelsurf" the best-reviewed sites on the web. It is a collaborative surfing tool for browsing, reviewing and sharing great sites with like-minded people. This helps you find interesting webpages you wouldn't think to search for.
• del.icio.us Bookmarks - This extension integrates your browser with del.icio.us (http://del.icio.us/), the leading social bookmarking service on the Web. It does this by augmenting the bookmarking functionality in Firefox with an enhanced experience.
• Greasemonkey - Allows you to customize the way a webpage displays using small bits of JavaScript.
• Yoono - Yoono instantly suggests similar sites, blog notes and people sharing the same interests while you are surfing, for each page you open. Zero effort required - no more tagging, typing keywords or changing interface.
• Firefox Companion for Kodak EasyShare Gallery - Organizing and sharing your pictures is easier than ever with Firefox Companion for Kodak EasyShare Gallery. Upload photos directly to your Kodak EasyShare Gallery, all within your browser. Drag, drop and arrange pictures adding photo titles, and create albums by multi-selecting photos - all of this without interrupting your Internet browsing.
• DownloadHelper - DownloadHelper is a tool for web content extraction. Its purpose is to capture video and image files from many sites.
• Performancing - Performancing for Firefox is a full featured blog editor that sits right in your Firefox browser and lets you post to your blog easily. You can drag and drop formatted text from the page you happen to be browsing, and take notes as well as post to your blog.
• LinkedIn Companion - LinkedIn is an online network of more than 7.5 million experienced professionals. LinkedIn helps you be more effective in your daily work and opens doors to opportunities by helping you develop and manage your network of business contacts.
• Fast Video Download - Fast Video Download can save embedded video files from video-hosting servers.