Your browser is open right now. Probably more than one. Dozens of tabs, five or so extensions, and somewhere in there the page you needed got lost. Sound familiar? This section is about taming your browser and making it work for you, not against you.

Here's everything related to Chrome, Firefox, Edge, Brave, and Vivaldi. Installing and configuring extensions, managing dozens of tabs without chaos, keyboard shortcuts for speed. We break down Chrome DevTools (the built-in developer tools): how to open them, how to view page source, how to emulate mobile devices right in the browser. A separate section on mobile topics. We'll show you how to install Chrome extensions on Android, even though there's no official button for it.

Common tasks look like this. How to assign a custom keyboard shortcut to a Chrome extension. How to avoid drowning in open tabs in Chrome, Firefox, and Brave. How to turn a website into a Chrome app that launches in its own window. Where to switch the screen to iPhone or Android in DevTools and check the layout.

There are also more specific scenarios that we cover as well. How to clear cache and cookies for just one site, not all at once. How to import passwords and bookmarks when moving from Chrome to Firefox and back. How to set up separate profiles: one for work, one personal, so that history and extensions don't mix. How to enable vertical tabs in Edge and Vivaldi when the horizontal bar can no longer fit everything open. How to read network requests in the Network tab to understand why a page takes ten seconds to load.

The content is written by practitioners. We ourselves keep three browsers on every machine: one for work, one for testing, one just in case. We've seen an extension quietly eat up RAM and slow down the entire system. We know which add-ons are best removed immediately.

That's why every guide follows the same structure. First, a short answer to the question. Installed, clicked, it works. Then a deeper breakdown: why it works that way, what the nuances are, what will break if you do it differently. No fluff and no "install this miracle plugin and life will get better."

We speak honestly about the downsides. Brave saves battery and blocks ads, but sometimes breaks websites. Firefox is more private than Chrome, yet some extensions only work in Chrome. Edge is convenient on Windows, but it drags Microsoft services along with it. Vivaldi is flexible to the extreme, but that flexibility scares off beginners. We'll tell you straight where each browser wins and where it loses.

Typical mistakes repeat over and over, and we draw special attention to them. People install a dozen extensions for the same task and then wonder why the browser is eating three gigabytes of memory. They give a dubious add-on access to all websites and click "Allow" without looking. They keep a hundred tabs open for weeks instead of using bookmarks. They clear the cache for every little problem, even though the cause is more often an extension. When evaluating an add-on, we look at three things: what permissions it asks for, when it was last updated, and who the developer is. If an extension asks for access to everything and hasn't been updated in two years, it's not worth installing.

Who this section is for. For those who spend half their working day in the browser and want to waste less time on routine. For layout developers and frontend engineers who need DevTools every day. For people who are simply tired of sluggish performance and want to bring order to their tabs and extensions.

How to use this section. Don't read everything in order from top to bottom. Open the article that solves today's problem, apply it, and close it. The guides are self-contained: each works on its own, without requiring you to read the previous ones.

Keyboard shortcuts save more time than you'd think. A couple of weeks of habit, and you'll stop reaching for the mouse for simple actions. We've collected working combinations for all popular browsers. Don't memorize everything at once. Pick five that are useful to you specifically; the rest will come naturally.

Start with what hurts the most. Browser is sluggish: check out the articles on extensions and memory. You get lost in tabs: there are dedicated techniques and add-ons for grouping. You need to test a site on mobile: open the DevTools guides. And if you want to squeeze maximum speed out of your browser, read about keyboard shortcuts and Chrome apps. The browser will become a tool, not a dump of open windows.