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— CH. 1 · THE FIRST WEB PAGE —

Web browser

~3 min read · Ch. 1 of 6
6 sections
  • In 1990, Sir Tim Berners-Lee created the very first web browser named WorldWideWeb. This software allowed users to view documents stored on a server for the first time. Nicola Pellow joined the project shortly after to write the Line Mode Browser. That version displayed pages on dumb terminals without graphics. The Mosaic web browser arrived in April 1993 and changed everything. Its graphical interface made the World Wide Web easy to navigate for average people. This innovation sparked an Internet boom during the 1990s when the Web grew rapidly.

  • Microsoft debuted Internet Explorer in 1995 to challenge Netscape Navigator. The two companies fought a fierce war over market dominance. Microsoft bundled its browser with Windows as freeware with no restrictions. This strategy helped it gain a dominant position within just a few years. Internet Explorer peaked at over 95% market share in the early 2000s. Netscape launched the Mozilla Foundation in 1998 to create open-source alternatives. Firefox emerged from this effort and reached 32% market share by 2010. Apple released Safari in 2003 but it remained popular only on Apple devices.

  • Google introduced Chrome in 2008 to compete with established players. It steadily took market share from Internet Explorer over the next four years. By 2012, Chrome became the most popular browser globally. It has held that top spot ever since. Microsoft replaced Internet Explorer with Edge Legacy for Windows 10 in 2015. A new Chromium-based version of Edge arrived in 2020 to replace the old one. Modern browsers now support complex web apps and streaming HD video. Broadband connectivity enabled people to access data-intensive content like YouTube.

  • As of February 2025, Google Chrome holds approximately 66% global market share. Safari follows with about 16% of the worldwide audience. Microsoft Edge captures roughly 6% while Firefox takes around 3%. Samsung Internet and Opera each hold about 2% of the total. Mobile devices represent a 62% share of all Internet traffic today. Desktop computers account for 36% and tablets make up just 2%. Most source code for Chrome comes from the open-source Chromium project. This same code forms the basis for many other browsers including Edge.

  • Common user interface features include tabs for multiple pages at once. Back and forward buttons let users navigate previous or next pages easily. An address bar displays URLs and allows input of new addresses. Refresh and stop buttons reload or cancel loading current pages. Home buttons return users to their start page quickly. Mobile browsers simplify these elements due to smaller touch screens. Responsive web design creates consistent experiences across desktop and mobile versions. Sophisticated development tools exist within popular desktop browsers for creators.

  • Hackers exploit security holes in browsers to steal information or destroy files. Vendors regularly patch these vulnerabilities so users must keep software updated. Antivirus software helps protect against scams and malicious activities. Cookies store login credentials but also track behavior over long periods. Browsers provide menu sections for deleting cookies manually. Some browsers offer proactive protection against trackers that limit functionality. Telemetry data collects usage patterns which users can usually opt out of. Privacy-focused options like Brave perform better than popular choices in blocking scripts.

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Common questions

Who created the first web browser named WorldWideWeb?

Sir Tim Berners-Lee created the very first web browser named WorldWideWeb in 1990. This software allowed users to view documents stored on a server for the first time.

When did Mosaic web browser arrive and what was its impact?

The Mosaic web browser arrived in April 1993 and changed everything with its graphical interface. Its design made the World Wide Web easy to navigate for average people and sparked an Internet boom during the 1990s when the Web grew rapidly.

What year did Microsoft debut Internet Explorer and what market share did it reach?

Microsoft debuted Internet Explorer in 1995 to challenge Netscape Navigator. Internet Explorer peaked at over 95% market share in the early 2000s after bundling its browser with Windows as freeware with no restrictions.

Which web browser became the most popular globally by 2012 and how much market share does it hold today?

Google introduced Chrome in 2008 and it became the most popular browser globally by 2012. As of February 2025, Google Chrome holds approximately 66% global market share.

How do modern browsers handle security vulnerabilities and user privacy data?

Hackers exploit security holes in browsers to steal information or destroy files so vendors regularly patch these vulnerabilities so users must keep software updated. Telemetry data collects usage patterns which users can usually opt out of while some browsers offer proactive protection against trackers that limit functionality.