List of Firefox extensions
Encyclopedia
This is a list of some of the many available Firefox extensions, software add-ons
designed for Mozilla Firefox based web browser
s. Many Firefox extensions work in the SeaMonkey
web browser as well.
Browser extension
A browser extension is a computer program that extends the functionality of a web browser in some way. Depending on the browser and the version, the term may be distinct from similar terms such as plug-in or add-on. Mozilla Firefox was designed with the idea of being a small and simple web browser,...
designed for Mozilla Firefox based web browser
Web browser
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content...
s. Many Firefox extensions work in the SeaMonkey
SeaMonkey
SeaMonkey is a free and open source cross-platform Internet suite. It is the continuation of the former Mozilla Application Suite, based on the same source code...
web browser as well.
Official
- ChatZillaChatZillaChatZilla is an IRC client for Mozilla-based browsers such as Firefox, introduced in 2000. It is cross-platform open source software which has been noted for its consistent appearance across platforms, CSS appearance customization and scripting....
– a full-fledged Internet Relay ChatInternet Relay ChatInternet Relay Chat is a protocol for real-time Internet text messaging or synchronous conferencing. It is mainly designed for group communication in discussion forums, called channels, but also allows one-to-one communication via private message as well as chat and data transfer, including file...
client that works inside Firefox. - Breakpad – reports any crashes of Firefox to Mozilla.
- DOM InspectorDOM InspectorDOM Inspector is a web developer tool created by Joe Hewitt and was originally included in Mozilla Application Suite as well as versions of Mozilla Firefox prior to Firefox 3. It is now included by default in SeaMonkey and is an installable extension for subsequent versions of Firefox and other...
– for web developerWeb developerA web developer is a software developer or software engineer who specializes in, or is specifically engaged in, the development of World Wide Web applications, or distributed network applications that are run over HTTP from a web server to a web browser....
s. It allows them to inspect the Document Object ModelDocument Object ModelThe Document Object Model is a cross-platform and language-independent convention for representing and interacting with objects in HTML, XHTML and XML documents. Aspects of the DOM may be addressed and manipulated within the syntax of the programming language in use...
tree of any page. - VenkmanVenkmanVenkman is the JavaScript debugger component of the Mozilla Application Suite. It is also available as a Mozilla Firefox extension. Venkman is named after the character Dr. Peter Venkman played by Bill Murray in the movies Ghostbusters and Ghostbusters II.-History:In 1998, John Bandhauer was in...
– a JavaScriptJavaScriptJavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles....
debuggerDebuggerA debugger or debugging tool is a computer program that is used to test and debug other programs . The code to be examined might alternatively be running on an instruction set simulator , a technique that allows great power in its ability to halt when specific conditions are encountered but which...
for web developers.
Website Integration
- AniWeatherAniWeatherAniWeather is a browser extension that displays weather information using animated and graphical reports. Its name comes from the combination of "Animated Weather" and "Any Weather". AniWeather uses Flash animations to show 5-day forecasts that simulate real weather conditions , with the data feed...
– displays animated/graphical weather report from weather.comThe Weather ChannelThe Weather Channel is a US cable and satellite television network since May 2, 1982, that broadcasts weather forecasts and weather-related news, along with entertainment programming related to weather 24 hours a day...
and weather.govNational Weather ServiceThe National Weather Service , once known as the Weather Bureau, is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration of the United States government...
. - ForecastfoxForecastfoxForecastfox is a Firefox browser extension created by Ensolis that displays a summary of weather forecast for a given location in the status bar, menu bar or toolbar. The summary takes the form of icons alongside text labels, depicting sun, clouds or rain for one or more days ahead...
– displays a summary of weather forecast from AccuWeatherAccuWeatherAccuWeather is an American media company that provides for-profit weather forecasting services worldwide.AccuWeather was founded in 1962 by Joel N. Myers, then a Penn State graduate student working on degrees in meteorology. His first customer was a gas company in Pennsylvania. While running the...
. - LibXLibXLibX is a free, open source scholars' extension for the Firefox and Internet Explorer browsers that lets people use services offered by their library. Users can search their library catalog and databases through a search bar or through a context menu...
– library catalogues. - LinkExtendLinkextendLinkExtend is an extension for Firefox and Flock web browsers. It conveniently offers information on various issues of great importance. It's the first meta-site-safety tool, bringing users a safer browsing experience. It gets its safety ratings from eight different services.In addition, it offers...
– offers meta-ratings on site safety, child safety, company ethics, and site traffic. Also shows PageRankPageRankPageRank is a link analysis algorithm, named after Larry Page and used by the Google Internet search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set...
, file downloads, etc. - SimilarWebSimilarGroupSimilarGroup is a private technology based company, that developed an advanced algorithm aimed to identify similar and top content related to every website online in real time...
– offers similar sites to the web pageWeb pageA web page or webpage is a document or information resource that is suitable for the World Wide Web and can be accessed through a web browser and displayed on a monitor or mobile device. This information is usually in HTML or XHTML format, and may provide navigation to other web pages via hypertext...
the user is browsing. - StumbleUponStumbleUponStumbleUpon is a discovery engine that finds and recommends web content to its users. Its features allow users to discover and rate Web pages, photos, and videos that are personalized to their tastes and interests using peer-sourcing and social-networking principles.Toolbar versions exist for...
– allows users to encounter random sites based upon the rating given by stumblers and their interests.
Social Addons
- WiseStampWiseStampWiseStamp is a web browser extension which supports Firefox, Google Chrome and RockMelt web browsers. WiseStamp enables users to include social profiles and dynamic Email Apps in their emails....
– empowers users emails with social profiles and dynamic Email Apps. - ShareaholicShareaholicShareaholic is a browser extension that works with Internet Explorer, Opera, Firefox, Google Chrome, and Flock. It provides shortcut access to different social networking and sharing sites including support for web-based emails.- External links :**...
– makes it easy to access dozens of social media sites.
Google Integration
- Google EarthGoogle EarthGoogle Earth is a virtual globe, map and geographical information program that was originally called EarthViewer 3D, and was created by Keyhole, Inc, a Central Intelligence Agency funded company acquired by Google in 2004 . It maps the Earth by the superimposition of images obtained from satellite...
– provides full integration of Google Earth into the browser. - Google ToolbarGoogle ToolbarGoogle Toolbar is an Internet browser toolbar only available for Internet Explorer and Firefox .-Google Toolbar 1.0 December 11, 2000:New features:*Direct access to the Google search functionality from any web page*Web Site search...
– provides features related to Google Search as a toolbar. - GooglepediaGooglepediaGooglepedia is a free software extension for the Web browsers Mozilla Firefox and Google Chrome that displays relevant articles from the free Web-based encyclopedia, Wikipedia, on Google search engine results pages.- Features :...
– shows users Wikipedia articles along with their Google search results.
Wikipedia Integration
- FastestFox – integrates Wikipedia functionality into Firefox and recommends related articles.
- Universal Edit ButtonUniversal edit buttonThe Universal Edit Button is a green pencil icon in the address bar of a web browser that indicates whether a web page is editable. It is similar to the orange "broadcast" RSS icon that indicates that there is a web feed available. Clicking the icon opens the edit window...
– notifies user when a web page contains editable content.
Application Integration
- EPUBReaderEPUBReaderEPUBReader is a freeware Firefox add-on that lets you read the contents of any ePub book right inside Firefox without requiring any special software....
– read the contents of any ePubEPUBEPUB is a free and open e-book standard by the International Digital Publishing Forum...
book without requiring any additional software. - FlashGotFlashGotFlashGot is a free and open source Mozilla extension meant to handle single and massive downloads with several external download managers.-Metalink support:...
– provides download features and integration with a variety of external download managerDownload managerA download manager is a computer program dedicated to the task of downloading possibly unrelated stand-alone files from the Internet for storage...
s. - FoxyTunesFoxyTunesFoxyTunes is a browser extension which was acquired by Yahoo! on February 4, 2008. The program allows the user to control media players from the browser window...
– controls external media players.
Browser Behavior/Navigation
- Adblock Plus is used for blocking ads via a paired blacklist and whitelist.
- All-in-One SidebarAll-in-One SidebarAll-in-One Sidebar, abbreviated as AiOS, is a popular extension for the Mozilla Firefox web browser which adds enhanced sidebar functionality similar to that found in the Opera browser. All-in-One Sidebar won the "Best User Experience" award for an upgraded extension in Mozilla's 2006 "Extend...
– adds enhanced sidebar functionality similar to that found in the OperaOpera (web browser)Opera is a web browser and Internet suite developed by Opera Software with over 200 million users worldwide. The browser handles common Internet-related tasks such as displaying web sites, sending and receiving e-mail messages, managing contacts, chatting on IRC, downloading files via BitTorrent,...
web browser. - Capture FoxCapture FoxCapture Fox is a free Mozilla Firefox add-on that was released on July 12th, 2008. Its primary use is for capturing screen shots and recording voices, making it useful for creating screencast videos....
– is a screencast tool which captures the Firefox window as well as the whole screen and records the user's voice. - CoolirisCoolirisCooliris, Inc. is a US corporation. Headquartered in Palo Alto, CA, Cooliris develops products intended to enhance user experience of online media...
– A quick and visually pleasing way to browse photos and videos from the Web or a Desktop - FlashblockFlashblockFlashblock is a content-filtering extension for the Mozilla Firefox- and Mozilla Application Suite-based web browsers. Flashblock allows users to prevent page elements, such as HTML object tag Browser plug-ins and advertisements, from being displayed...
– prevents FlashAdobe FlashAdobe Flash is a multimedia platform used to add animation, video, and interactivity to web pages. Flash is frequently used for advertisements, games and flash animations for broadcast...
content from running without being explicitly started (clicked) or whitelisted. - HyperwordsHyperwordsHyperwords was a term for interactive text. Whereas hyper-links have the specific meaning of words which are linked to specific destinations, hyperwords refers to all interactive words where the idea is that the reader can issue commands on the text...
– allows users to select text and perform rich commands, such as instant Wikipedia look-ups, in-page translations and conversions etc. - Image ZoomImage ZoomImage Zoom is an extension for all Gecko based web browsers. Image Zoom allows the user to change image sizes within a web page. There are several ways the user can zoom images through the interface as well as the ability to zoom single images or an entire page of images.Image zoom is also a term...
– allows users to change image sizes within the page. - Surf CanyonSurf CanyonSurf Canyon is a small computer software company founded and located in San Francisco, California, as well as their eponymous browser extension and web site...
– is a real-time relevance feedbackRelevance feedbackRelevance feedback is a feature of some information retrieval systems. The idea behind relevance feedback is to take the results that are initially returned from a given query and to use information about whether or not those results are relevant to perform a new query...
application which provides implicit personalization of search results on several major search engines. - Text to Voice or Text to Speech is used for making Firefox speak whatever has been selected from the webpage.
- VimperatorVimperatorVimperator is a Mozilla Firefox extension forked from the original Firefox extension version of Conkeror and designed to provide a more efficient user interface for keyboard-fluent users...
– makes Firefox feel and behave like the VimVim (text editor)Vim is a text editor written by Bram Moolenaar and first released publicly in 1991. Based on the vi editor common to Unix-like systems, Vim is designed for use both from a command line interface and as a standalone application in a graphical user interface...
text editor. - ZoteroZoteroZotero is free, open source reference management software to manage bibliographic data and related research materials . Notable features include web browser integration, online syncing, generation of in-text citations, footnotes and bibliographies, as well as integration with the word processors...
– enables users to collect, manage, and cite research from all types of sources from the browser.
Bookmarks
- DéjàClickDéjàClickDéjàClick is an add-on for the Mozilla Firefox web browser that provides the ability to record and play select web transactions to monitor and/or analyze. This functionality is similar to website monitoring, with the exception that it monitors website transactions from inside the browser to...
– enables the user to bookmark a multi-step recording. - ScrapBookScrapBookScrapBook is an extension for the Mozilla Firefox web browser which adds enhanced scrapbooking, page saving, bookmarking, and notetaking functionality. The extension was initially developed at , which is a member of the Chair of Human Resource Development in the Department of Human System Science...
– adds enhanced scrapbookingScrapbookingScrapbooking is a method for preserving personal and family history in the form of a scrapbook. Typical memorabilia include photographs, printed media, and artwork. Scrapbook albums are often decorated and frequently contain extensive journaling...
, page saving, bookmarking, and notetakingNotetakingNotetaking is the practice of recording information captured from a transient source, such as an oral discussion at a meeting, or a lecture. Notes of a meeting are usually called minutes. The format of the initial record may often be informal and/or unstructured. One common format for such notes is...
functionality. - Xmarks – adds online bookmark and password synchronization, as well as bookmark tagging and suggested sites.
Customization
- DéjàClickDéjàClickDéjàClick is an add-on for the Mozilla Firefox web browser that provides the ability to record and play select web transactions to monitor and/or analyze. This functionality is similar to website monitoring, with the exception that it monitors website transactions from inside the browser to...
– enables user to record and playback complex web transactions via a free web recorder for Firefox. - GreasemonkeyGreasemonkeyGreasemonkey is a Mozilla Firefox extension that allows users to install scripts that make on-the-fly changes to HTML web page content on the DOMContentLoaded event, which happens immediately after it is loaded in the browser .As Greasemonkey scripts are persistent, the changes made to the web...
– allows users to install user scriptsScripting languageA scripting language, script language, or extension language is a programming language that allows control of one or more applications. "Scripts" are distinct from the core code of the application, as they are usually written in a different language and are often created or at least modified by the...
that modify specific web pageWeb pageA web page or webpage is a document or information resource that is suitable for the World Wide Web and can be accessed through a web browser and displayed on a monitor or mobile device. This information is usually in HTML or XHTML format, and may provide navigation to other web pages via hypertext...
s. - iMacrosIMacrosiMacros is an extension for the Mozilla Firefox, Google Chrome, and Internet Explorer web browsers which adds record and replay functionality similar to that found in web testing and form filler software. The macros can be combined and controlled via JavaScript. Demo macros and JavaScript code...
– a macro recorder for the Firefox web browser. - StylishStylishStylish is a free Mozilla extension that allows for the manipulation of web pages and XUL application user interfaces through the use of Cascading Style Sheets. These custom "user styles" are created by the user, or installed from an external archive like...
– allows the user to install custom CSSCascading Style SheetsCascading Style Sheets is a style sheet language used to describe the presentation semantics of a document written in a markup language...
that can modify specific web pages and XULXULIn computer programming, XUL , the XML User Interface Language, is an XML user interface markup language developed by the Mozilla project. XUL operates in Mozilla cross-platform applications such as Firefox...
application interfaces.
Download Management
- DownThemAll!DownThemAll!DownThemAll is a download manager/accelerator extension for Mozilla Firefox, licensed under the GPL. It can pause and restart supporting downloads at any time, without losing data, and enables users to download all the links, images or embedded object contained in a webpage...
– a download manager/accelerator. - PDF DownloadPDF DownloadPDF Download is an extension for the Mozilla Firefox web browsers which allows to choose if you want to view a PDF file inside the browser , if you want to view it outside Firefox with your default or custom PDF reader, or if you want to download it. The extension was developed by Nitro PDF Software...
– allows users to customize the handling of PDF files. - Video DownloadHelperVideo DownloadHelperVideo DownloadHelper is an extension for the Mozilla Firefox web browser. It allows the user to download videos from sites that stream videos though the HTTP protocol, such as YouTube. The extension was developed by...
– used to download videos from sites like Youtube or Metacafe.
Feeds
- Morning CoffeeMorning Coffee (Firefox add-on)Morning Coffee is a Mozilla Firefox add-on. Morning Coffee was produced by Firefox user "SJML," who is really named Shane Liesegang. The current version of Morning Coffee is 1.35; it was last updated on February 16, 2011, and it was originally released in 2005.-Use:Morning Coffee is used to open...
– a news displayer. - OperatorOperator (extension)Operator is an extension for the Mozilla Firefox web browser. It parses and acts upon a number of microformats, as well as validating them.Operator lets the user access microformats through a number of methods, all of which are optional: a toolbar, a toolbar button, a status bar icon, a location...
– parses microformatsMicroformatA microformat is a web-based approach to semantic markup which seeks to re-use existing HTML/XHTML tags to convey metadata and other attributes in web pages and other contexts that support HTML, such as RSS...
. - SageSage (Mozilla Firefox extension)Sage is a lightweight RSS and atom feed aggregator extension for the Mozilla Firefox web browser. The extension was developed by Peter Andrews and Erik Arvidsson. The current stable release of Sage is version 1.4.12, released on June 16, 2011....
– a popular, lightweight Feed reader extension.
Language Tools
- FoxLingoFoxLingoFoxLingo is an extension for the Firefox, SeaMonkey, and Flock web browsers. It offers many language tools, including web page translation , translated search, auto translation, text translation, text to speech, language resources, and much more.-See also:*LinkExtend, another extension created by...
– translates web pageWeb pageA web page or webpage is a document or information resource that is suitable for the World Wide Web and can be accessed through a web browser and displayed on a monitor or mobile device. This information is usually in HTML or XHTML format, and may provide navigation to other web pages via hypertext...
s and text using many free online translators and offers other language tools. - RikaichanRikaichanrikaichan is an extension for Mozilla Firefox that provides a popup Japanese–English/German/French/Russian dictionary. Hover the mouse on top of Japanese words to display the translation. A more detailed kanji view shows the character's meaning, on/kun readings, number of strokes and other...
– a popup Japanese-English/German/French/Russian dictionary. - International SideboardInternational SideboardInternational Sideboard is a Mozilla extension that displays all languages characters as buttons to help editors type their text. It displays a sidebar to choose the language and all the characters of this language are displays in a tab like a keyboard, to be typed on...
– a keyboard for typing all language (unicode) characters for Firefox.
Privacy/Security
- Offer Assistant – password management, shopping, and bill pay add-on.
- LastPassLastPassLastPass Password Manager is a freemium password management program developed by LastPass. It is available as a plugin for Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and Safari...
– offers password management, portability and security. - NoScriptNoScriptNoScript is a free and open-source extension for Mozilla Firefox, SeaMonkey, and other Mozilla-based web browsers, created and actively maintained by Giorgio Maone, an Italian software developer and member of the Mozilla Security Group...
– allows users to control JavaScriptJavaScriptJavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles....
and other potentially executable content. - WOT: Web of Trust – warns you about risky sites by adding security icons next to search results, email links, as well as Wikipedia.
Tabs
- Firefox ShowcaseFirefox ShowcaseFirefox Showcase is an extension for the Mozilla Firefox, Flock, and SeaMonkey web browsers. Its function is to show all open browsers as thumbnails, and it offers capabilities like search and tab organization....
– shows tabs as thumbnails, to preview, manage and search across them. - Tab Mix PlusTab Mix PlusTab Mix Plus is a Mozilla Firefox extension that adds to the tabbed browsing functions in Firefox. It is a popular extension on Mozilla Add-ons, which records download statistics. TMP is a collection of features from other extensions built in one package. Lifehacker named it one of their "Top 10...
– provides tabbed browsing enhancements.
Website Development Tools
- ColorZillaColorZillaColorZilla is a Mozilla extension that assists web developers and graphic designers with color related and other tasks.ColorZilla allows getting a color reading from any point in the browser, quickly adjusting this color and pasting it into another program, such as Photoshop.The extension allows...
– adds an eye dropper (color reader), color palettes, page zooming, and displays element information. - Firebug – allows the debugging, editing, and modifying of any website's CSS, HTML, DOM, and JavaScript, and provides other web development tools.
- FireFTPFireFTPFireFTP is a free, open source, cross-platform FTP client for Mozilla Firefox in the form of an add-on. It supports FTP, FTPS, and SFTP. FireFTP is charityware and runs on platforms that Firefox supports.- Features :...
– is a cross-platform FTPFile Transfer ProtocolFile Transfer Protocol is a standard network protocol used to transfer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server...
client which provides access to FTP servers. - Web DeveloperWeb Developer (Mozilla extension)Web Developer is an extension for Mozilla-based web browsers that adds editing and debugging tools for web developers. It has been tested to be compatible with Firefox, Flock, and Seamonkey. The extension was developed by who has also authored the extension...
– adds a menu and a toolbar to the browser with various web developer tools. - Alexa ToolbarAlexa ToolbarThe Alexa Toolbar, is an application produced by Alexa Internet, and is a Firefox extension and Browser Helper Object for Internet Explorer on Microsoft Windows that is used by Alexa to measure website specific statistics.-Content:...
– provides access to SEO data.