Browser
About 5 min read
Last updated: 2026-04-12
What Is a Browser
A web browser is an application that displays web pages by interpreting HTML (structure), CSS (design), and JavaScript (interactivity) received from servers. Think of the server as sending raw ingredients and the browser as the chef that cooks and plates the dish. Without a browser, you cannot view websites.
Major Browser Comparison
Chrome (Google) leads with roughly 65% market share and offers a vast library of extensions. Safari (Apple) comes pre-installed on iPhone and Mac with excellent battery efficiency. Edge (Microsoft) ships with Windows and supports Chrome extensions. Firefox (Mozilla) is developed by a nonprofit and prioritizes privacy. All browsers can display the same websites.
How Rendering Works
From URL input to page display: (1) DNS resolves the domain name to an IP address (2) the browser sends a request to the server (3) HTML, CSS, and JavaScript are received (4) the DOM tree is built (5) styles are applied and painted (6) JavaScript is executed. This typically completes in 1-3 seconds.
Privacy Features
Incognito mode (private browsing) prevents the browser from saving your browsing history and cookies locally. However, it does not make you invisible - your ISP and the servers you visit can still see your activity. Tracking prevention features block third-party cookies to prevent cross-site tracking.
Safe Browsing Tips
Always keep your browser updated to patch security vulnerabilities. Avoid installing suspicious extensions, as they can access all your browser data. Always check the URL in the address bar on login pages.
For more details, see our article What Is a Browser? How It Works and How to Stay Safe.
Common Misconceptions
- Incognito mode makes you completely anonymous
- Incognito mode only prevents data from being saved locally in your browser. Your ISP and the servers you visit can still see your activity.
- All browsers are the same
- While core functionality is similar, browsers differ in privacy protection strength, extension availability, and battery efficiency.
Browser vs Native App
Browser
A general-purpose app for viewing websites. Enter any URL to access any site.
Native App
An app optimized for a specific service. May offer push notifications, offline access, and other features not available in browsers.