Browser extension into pages. 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. Browser extension 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. 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
Google Toolbar Google Toolbar Google Toolbar is a web browser toolbar for Internet Explorer, developed by Google. It was first released in 2000 for Internet Explorer 5. Google Toolbar was also supported on Firefox from September 2005 to June 2011. Google Toolbar resides above the browser's tab bar and provides a search box to carry out web searches. Users can log into their Gmail accounts and access their email, saved bookmarks, and web history. It has tools such as AutoLink, AutoFill, Translation, spell checker common to all browsers, while pop-up blocker and word finder are restricted to Internet Explorer. Google Toolbar is