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
History of the Opera web browser to use or customize. Opera Mobile Classic was replaced by Opera browser for Android. Internet Channel is a web browser for Nintendo's Wii gaming console made by Opera Software and Nintendo. Internet Channel was free to download from its release on 12 April 2007 until 30 June 2007. After that date, Wii users had to pay 500 Wii Points to download it. However, in late August / early September of the year 2009, the Internet Channel was once again available to download for free and those who paid for the service had their Wii Points returned in the form of