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Browser Extensions - Back to Basics
Browser Extensions - Back to Basics
Published: 2015/07/08
Channel: dottotech
Browser Extensions as Fast As Possible
Browser Extensions as Fast As Possible
Published: 2015/07/14
Channel: Techquickie
10 Chrome Extensions That Are Amazingly Useful!
10 Chrome Extensions That Are Amazingly Useful!
Published: 2017/06/15
Channel: TechGumbo
Make Your Own Chrome Extension: Part 1
Make Your Own Chrome Extension: Part 1
Published: 2013/11/20
Channel: howCode
5 Amazing Chrome Extensions You
5 Amazing Chrome Extensions You've Never Heard Of!
Published: 2017/06/22
Channel: Snazzy Labs
4 Browser Extension I use Every Day
4 Browser Extension I use Every Day
Published: 2015/10/22
Channel: dottotech
5 Chrome Extensions That Are Amazingly Useful to Save You Money!
5 Chrome Extensions That Are Amazingly Useful to Save You Money!
Published: 2017/04/12
Channel: TechGumbo
What Browser Plugins Do We Use? - Tech Tips Suggested Software
What Browser Plugins Do We Use? - Tech Tips Suggested Software
Published: 2014/03/24
Channel: NCIX Tech Tips
Building Your First Chrome Extension
Building Your First Chrome Extension
Published: 2012/09/05
Channel: Christian Cantrell
LastPass 101: Meet the Browser Extension
LastPass 101: Meet the Browser Extension
Published: 2017/03/01
Channel: LastPass
Google Chrome Extensions: How to build an extension
Google Chrome Extensions: How to build an extension
Published: 2009/12/08
Channel: Google Developers
How To Add IDM (internet download manager) Extension To Google Chrome Browser
How To Add IDM (internet download manager) Extension To Google Chrome Browser
Published: 2016/09/20
Channel: Safaa Al-Hayali
Top 7 Cool Chrome Extensions You
Top 7 Cool Chrome Extensions You'll Want Right Now
Published: 2016/10/25
Channel: ThioJoe
How To Install and Remove Google Chrome Extensions - Google Chrome Tutorial
How To Install and Remove Google Chrome Extensions - Google Chrome Tutorial
Published: 2014/04/18
Channel: Technologyguru
The Best FREE Browser Extension for YouTube and Beyond
The Best FREE Browser Extension for YouTube and Beyond
Published: 2014/06/20
Channel: Turn Off the Lights
How to uninstall or Disable Extension From Google Chrome Browser
How to uninstall or Disable Extension From Google Chrome Browser
Published: 2012/09/27
Channel: Techlomedia
How To Create A Google Chrome Extension: A Step-by-Step Tutorial
How To Create A Google Chrome Extension: A Step-by-Step Tutorial
Published: 2016/10/18
Channel: Fullstack Academy
Cross-browser extensions, available now in Firefox
Cross-browser extensions, available now in Firefox
Published: 2017/06/14
Channel: Mozilla Hacks
Honey Chrome Extension
Honey Chrome Extension
Published: 2014/12/17
Channel: Brooke Whitlow
Overview of Basic Features - Ghostery Browser Extension 7
Overview of Basic Features - Ghostery Browser Extension 7
Published: 2016/09/05
Channel: Ghostery
The Chrome Extension EVERY Amazon Seller Must Have!
The Chrome Extension EVERY Amazon Seller Must Have!
Published: 2017/05/27
Channel: TaughtToProfit
What
What's New? Turn Off the Lights Browser Extension
Published: 2014/05/05
Channel: Turn Off the Lights
Develop Simple Chrome Web Browser Extension 1/2
Develop Simple Chrome Web Browser Extension 1/2
Published: 2011/04/19
Channel: life michael
How to Use Pocket Extension for Saving Articles inside the browser
How to Use Pocket Extension for Saving Articles inside the browser
Published: 2014/12/16
Channel: CA Rajesh Pabari
How to add IDM Extension to browser
How to add IDM Extension to browser
Published: 2014/12/13
Channel: Geeks Plus
Chromium browser automation extension for chrome browser
Chromium browser automation extension for chrome browser
Published: 2012/05/06
Channel: Manvel Saroyan
Turn Off the Lights Browser extension v3.2 is now Online!
Turn Off the Lights Browser extension v3.2 is now Online!
Published: 2016/01/17
Channel: Turn Off the Lights
Browser Extension Searching
Browser Extension Searching
Published: 2012/02/06
Channel: imapptax
How to Set Password on Google Chrome Browser | Chrome Password Extension
How to Set Password on Google Chrome Browser | Chrome Password Extension
Published: 2016/10/27
Channel: Tuto2Info Videos
Ghostery Browser Extension
Ghostery Browser Extension
Published: 2015/11/02
Channel: Ghostery
How To Add IDM (Internet Download Manager) Extension To Google Chrome Browser
How To Add IDM (Internet Download Manager) Extension To Google Chrome Browser
Published: 2017/07/23
Channel: Time Circuit
Keepa Browser Extension
Keepa Browser Extension
Published: 2017/01/25
Channel: Keepa Tutorials
How To Add /Install IDM Extension To Google Chrome   Browser [ 2016 ]
How To Add /Install IDM Extension To Google Chrome Browser [ 2016 ]
Published: 2016/01/23
Channel: Learn More
How To Add IDM Extension in Browser In Urdu/Hindi
How To Add IDM Extension in Browser In Urdu/Hindi
Published: 2016/08/15
Channel: How to اردو
Atmosphere Lighting for YouTube™ Turn Off the Lights Browser Extension
Atmosphere Lighting for YouTube™ Turn Off the Lights Browser Extension
Published: 2014/05/05
Channel: Turn Off the Lights
Codecov Browser Extension - Overlaying code coverage
Codecov Browser Extension - Overlaying code coverage
Published: 2015/05/04
Channel: Codecov
Turn Off the Lights Browser Extension for Google Chrome, Firefox, Opera, Safari and Microsoft Edge
Turn Off the Lights Browser Extension for Google Chrome, Firefox, Opera, Safari and Microsoft Edge
Published: 2016/11/06
Channel: Turn Off the Lights
SimilarWeb - Browser Extension for Chrome
SimilarWeb - Browser Extension for Chrome
Published: 2013/01/06
Channel: SimilarWeb
DoneGood Browser Extension
DoneGood Browser Extension
Published: 2016/11/23
Channel: DoneGood
Local Settings for Ghostery Browser Extension 7
Local Settings for Ghostery Browser Extension 7
Published: 2016/09/04
Channel: Ghostery
How to install Google Chrome extension into Opera browser
How to install Google Chrome extension into Opera browser
Published: 2014/09/20
Channel: Pree
Chrome Browser Extension: 2 Pane for Gmail
Chrome Browser Extension: 2 Pane for Gmail
Published: 2012/01/08
Channel: Amit Gharat
Micropatching Remote Code Execution in WebEx Browser Extension (CVE-2017-3823)
Micropatching Remote Code Execution in WebEx Browser Extension (CVE-2017-3823)
Published: 2017/01/25
Channel: 0patch by ACROS Security
How to Add Extension in Browser. Urdu/Hindi
How to Add Extension in Browser. Urdu/Hindi
Published: 2017/01/28
Channel: White Moon Pro
extension amazon seller browser
extension amazon seller browser
Published: 2017/03/27
Channel: Guy Dor
Introducing NewTab: NewLifeOutlook
Introducing NewTab: NewLifeOutlook's Browser Extension
Published: 2017/06/15
Channel: NewLifeOutlook
Create Link: My Indispensable Browser Extension
Create Link: My Indispensable Browser Extension
Published: 2012/01/24
Channel: Matt Richardson
How to Make Facebook Infinitely Better with One Browser Extension
How to Make Facebook Infinitely Better with One Browser Extension
Published: 2012/03/13
Channel: Lifehacker
Installing the Browser Extension
Installing the Browser Extension
Published: 2014/08/12
Channel: CommonKey
Add AdBlock Extension in Vivaldi Web Browser
Add AdBlock Extension in Vivaldi Web Browser
Published: 2015/01/31
Channel: cricrazy05
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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A browser extension is a plug-in that extends the functionality of a web browser. Some extensions are authored using web technologies such as HTML, JavaScript, and CSS.[1] Others are developed using machine code and application programming interfaces (APIs) provided by web browsers, such as NPAPI and PPAPI. Browser extensions can change the user interface of the web browser without directly affecting viewable content of a web page; for example, by adding a browser toolbar.

History[edit]

Internet Explorer started supporting extensions from version 5 released in 1999.[2] Firefox has supported extensions since its launch in 2004. The Opera desktop web browser supported extensions from version 10 released in 2009. Google Chrome started supporting extensions from version 4 released in 2010. Safari started supporting native extensions from version 5 released in 2010. Microsoft Edge started supporting limited extensions in March 2016.[3][4]

The syntax for extensions may be quite different from browser to browser, or at least different enough that an extension working on one browser does not work on another. As for search engine tools, an attempt to bypass this problem is the multi-tag strategy proposed by the project Mycroft, a database of search engine add-ons working on different browsers.[5]

Installation[edit]

Many browsers have an online store that allows users to find extensions and see lists of popular extensions. Google Chrome,[6] Firefox,[7] Opera[8] and Safari[9] all provide such stores.

Functions[edit]

Browser extensions are used for improving a browser's user interface, security or accessibility, blocking advertisements, and various other features to make browsing the internet easier and more pleasant. There are many types of extensions that can be used to control various aspects of browsing privacy and mitigate threats. For instance, they may prevent third parties from tracking the user's movements, block ads and scripts, or enforce good habits.[10]

A browser toolbar is a common type of browser extensions that alters the user interface. It is a toolbar that resides within a browser's window. All major web browsers provide support for browser toolbars as a way to extend the browser's UI and functionality. Browser toolbars are specific to each browser, which means that a toolbar working on a browser does not work on another one.

Development[edit]

Browser extension development is the actual creation of an extension for a specific browser. Each browser type has its own architecture and application programming interfaces (APIs) to build the extensions, which requires different code and skills for each extension. The original API was NPAPI. It was first developed for Netscape browsers, starting in 1995 with Netscape Navigator 2.0, but was subsequently adopted by other browsers. Microsoft did not adopt this API for Internet Explorer and instead chose ActiveX for contents-altering plugins. The browser-altering plugins, called Browser Helper Objects, were designed based on a Component Object Model (COM) interface. Google later introduced the PPAPI interface in Chrome, even though its mainstream Google Chrome extensions are built using web technologies such as HTML5, JavaScript and CSS.[1] Firefox has supported or supports many technologies for developing what it calls "Mozilla add-ons", including NPAPI, XUL, XPI, XPCOM, XPConnect and JetPack, as well as web technologies such as HTML5, JavaScript and CSS. Its WebExtensions API is compatible with the extensions APIs of Google Chrome and Microsoft Edge.[11]

Unwanted behavior[edit]

Browser extensions have access to everything done by the browser, and can do things like inject ads into web pages, or make "background" HTTP requests to third-party servers. While web pages are constrained by the security model of the web browser (in particular, the same-origin policy), extensions are not. As a result, a malicious browser extension may take action against the interest of the user that installed it. Such browser extensions are a form of malware. Some software downloads come with unwanted bundled programs that install browser extensions without a user's knowledge, while making it hard for the user to uninstall the extension.[12]

In 2012, a security researcher "developed a remote-controlled piece of malware that functions as a browser extension and is capable of modifying web pages, downloading and executing files, hijacking accounts, bypassing two-factor authentication security features enforced by some websites, and much more." [13] In May 2013, Microsoft reported discovering a browser extension for Chrome and Firefox that "tries to hijack Facebook profiles" in Brazil.[14]

Some Google Chrome extension developers have sold extensions they made to third-party companies who silently push unwanted updates that incorporate previously non-existent adware into the extensions.[15][16] In January 2014, Google removed two extensions from its store due to violations of its own terms of service. The decision to remove the two extensions, "Add to Feedly" and "Tweet This Page", arose when users noticed these extensions created unwanted pop up ads, after the extensions had been sold by their developers to third parties.[17]

Five percent of computer browser visits to Google-owned websites are altered by computer programs that inject their own ads into pages.[18][19][20] Researchers have identified 50,870 Google Chrome extensions and 34,407 programs that injected ads. Thirty-eight percent of extensions and 17 percent of programs were catalogued as malicious software, the rest being potentially unwanted adware.

See also[edit]

References[edit]

  1. ^ a b "What are extensions?". Retrieved 18 February 2014. 
  2. ^ "Browser Extensions". Retrieved 2010-06-05. 
  3. ^ Bright, Peter (18 March 2016). "Edge browser now has extensions in the latest Windows 10 preview". Ars Technica. Condé Nast. 
  4. ^ Foley, Mary Jo (17 March 2016). "Microsoft releases first Edge extensions preview in newest Windows 10 test build". ZDNet. CBS Interactive. 
  5. ^ "Mycroft project". Retrieved 2011-10-27. 
  6. ^ "Extensions". Chrome Web Store. Google. Retrieved 15 March 2017. 
  7. ^ "Add-ons for Firefox". addons.mozilla.org. Mozilla Foundation. Retrieved 15 March 2017. 
  8. ^ "Extensions". Opera Add-ons. Opera Software. Retrieved 15 March 2017. 
  9. ^ "Safari Extensions". apple.com. Apple. Retrieved 15 March 2017. 
  10. ^ Henry, Alan (31 August 2015). "The Best Browser Extensions that Protect Your Privacy". LifeHacker. Gizmodo Media Group. 
  11. ^ "WebExtensions". developer.mozilla.org. Mozilla Foundation. Retrieved 15 March 2017. 
  12. ^ "PUP Criteria". Malwarebytes. Retrieved 13 February 2015. 
  13. ^ "Researcher to demonstrate feature-rich malware that works as a browser extension". Retrieved 15 March 2015. 
  14. ^ "Browser extension hijacks Facebook profiles". Retrieved 15 March 2015. 
  15. ^ "Adware vendors buy Chrome Extensions to send ad- and malware-filled updates". Ars Technica. Retrieved 20 January 2014. 
  16. ^ Bruce Schneier (21 Jan 2014). "Adware Vendors Buy and Abuse Chrome Extensions". 
  17. ^ Winkler, Rolfe. "Google Removes Two Chrome Extensions Amid Ad Uproar". blogs.wsj.com. Wall Street Journal. Retrieved 17 March 2014. 
  18. ^ "Ad Injection at Scale: Assessing Deceptive Advertisement Modifications" (PDF). Archived from the original (PDF) on 2015-06-05. 
  19. ^ "Superfish injects ads into 5 percent of all Google page views". PC World. IDG. 
  20. ^ "Superfish injects ads in one in 25 Google page views". CIO. IDG. 

External links[edit]

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