19 Chrome DevTools Tricks Every Developer Should Know
Most developers use Chrome DevTools every day. But most of us only use a small part of what it can actually do. Chrome DevTools has lots of hidden f…
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I Built a Chrome Extension to Track AI Token Usage — Here's How It Works
Six weeks ago I got cut off mid-debugging session by Claude's rate limit with no warning. Two hours of context gone. I started looking for a tool th…
What I Learned Shipping My First Chrome Extension to the Web Store
I spent the last few months building and shipping a Chrome extension called Promo Drop, a free tool that finds verified promo codes and cashback for…
GoFullPage got pulled. Here is how to take a full-page screenshot without any extension.
On 11 August the GoFullPage extension disappeared from the Chrome Web Store and got disabled in Chromium browsers. Eleven million users, one Tuesday…
Chrome may get faster updates with no restart required
The last two versions of Chrome have included more patches than the previous 23 combined.
How to Build a Profitable Chrome Extension in 2025
How to Build a Profitable Chrome Extension in 2025 tags: javascript, chrome, extension, money tags: javascript, chrome, extension, money How to Buil…
Reverse image search breaks on Instagram. Here's the fallback ladder that fixes it.
Every one-click reverse image search extension works the same way, and it is not the way you'd guess. It doesn't upload anything. It builds a URL: c…
I Built a Chrome Extension to Replace Notion's Broken Web Clipper
Notion's official Web Clipper has a 3.4★ rating on the Chrome Web Store. The reviews tell the same story for years: "go online to save" errors while…
How I Built a Free Image Downloader & Collector Extension for Designers & Graphic Apparel Creators
As a developer and creator involved in graphic apparel design at Tshirts I Want , I constantly find myself browsing visual inspiration across platfo…
Your YouTube screenshot is black because you screenshotted the wrong layer
You hit PrintScreen on a video, paste, and get a black rectangle where the picture was. The window frame is there. The controls are there. The video…
Why the most-installed "PDF dark mode" Chrome extensions do nothing on a web PDF
Chrome still ships no dark mode for its built-in PDF viewer. Open a white paper at 1am and you get a flashbang. So you go to the Web Store, install…
Building a Local-Only Chrome Extension That Autofills Job Application Forms
If you've ever filled out a dozen job application forms in a row, you know the special kind of tedium involved. This post is part of my ongoing "aut…
I got tired of running 4 browser extensions, so I built one
I had a website blocker, a Pomodoro timer, a tab suspender, and a time tracker installed at the same time — four separate extensions, four separate…
My AI QA agent said "all features working." The canvas was blank. Here's what it was actually seeing.
Back when I first delegated QA to an AI agent, it signed off on a tool with "all features working, pass." I opened the tool myself. The canvas was b…
Automating an app with no DOM: driving Flutter/canvas editors with coordinates only
In my last post I said that for normal HTML pages, element-based automation ( find / read_page ) beats coordinates every time. This post is about th…
Chrome Built-In AI APIs: A Hands-On Guide to Language Detection, Translation, Summarization and Writing Assistance
Introduction Chrome's Built-In AI APIs allow applications to perform selected AI workloads directly within the browser. Unlike traditional AI integr…
Extract Text From Scanned PDFs — Locally, No Upload, No Fees
Extract Text From Scanned PDFs — Locally, No Upload, No Fees Scanned contracts. Old receipts. Medical documents. Bank statements. We all have PDFs t…
I built a Chrome extension that drag-and-drops YouTube videos into playlists using AI
The problem I have hundreds of saved YouTube videos scattered across playlists. Every time I find something worth saving, I have to: open the video,…
A 20-year-old HCI paper, resurrected as a Chrome extension
I missed the tiny "x" on a browser tab again today. Meant to close it, switched to it instead. Aiming a one-pixel pointer at an eleven-pixel checkbo…
5 mistakes I made building an AI Chrome extension — and the readers who caught them
I've been reviewing pull requests for most of my career. At some point the queue got bad enough that I stopped asking "which PR should I review firs…
Block Google's AI Overviews at the Network Layer, Not the DOM
Google puts an AI Overview at the top of most search results now, and a lot of people would rather it didn't. So there's a whole shelf of Chrome ext…
Chat Exporter for Gemini – Save Conversations as Word, PDF, Notion & Markdown
Hi dev community! 👋 I wanted to share a Chrome extension I recently built to solve a personal frustration: Chat Exporter for Gemini . Whenever I use…
Detecting Which AI Chat Platform You're On: URL and DOM Patterns for ChatGPT, Claude, Gemini, and Copilot
If you're building a Chrome extension that works with AI chat platforms — prompt injection, session export, UI customization — you need to know whic…
Google just shipped an official "agent-ready" toolkit. Here's the one thing it can't measure.
For most of 2026, "is my website agent-ready?" was a question you answered with vibes and a blog post. As of last week, Chrome answers it with a too…
Gemini in Chrome is about to call WebMCP. The "no agent uses it yet" excuse just got an expiry date.
For most of 2026 the honest objection to WebMCP went like this: "Cool API. But no mainstream agent actually calls navigator.modelContext , so why sh…
Scraping Prices Without an API: Chrome Content Script Patterns for Japanese E-Commerce
Japanese e-commerce is fragmented. The same product — a vintage camera, a game console, a brand bag — can vary by ¥5,000–¥30,000 between Amazon.co.j…
Migrating to Manifest V3: what actually broke, what we saved, and what we gained
I built three Chrome extensions natively on Manifest V3. Not ported — built from scratch knowing MV3 was the target. Here's what that actually means…
Plasmo vs CRXJS vs WXT: Which Chrome Extension Framework Should You Use in 2026?
If you are starting a browser extension in 2026, you no longer hand-roll a manifest.json , wire up a Webpack config, and pray that hot reload works…
Browser Scroll Restoration Is Broken on SPAs. Here's How a Chrome Extension Fixes It.
Chrome has had scroll restoration support since 2015. You can even control it: history.scrollRestoration = 'manual' . But if you've ever tried to re…
5 Cookie Tricks for Debugging Auth Issues in Chrome (No More Creating Test Accounts)
Debugging authentication in web apps is painful. You need to test the same flow as five different user types — new visitor, returning user, admin, e…