Building a Chrome extension with AI step by step means following a clear path from an empty folder to a working product installed in your browser. On aidowith.me, the Chrome Extension route has 14 steps that use Cursor AI as your coding partner. Step 1 creates the project folder. Step 2 generates the manifest. Steps 3-5 build the popup interface. Steps 6-10 add content scripts, storage, and logic. Steps 11-13 handle testing and debugging. Step 14 is installation and polish. Each step tells you what to describe to Cursor in plain English and shows you what the output should look like. You don't write code by hand. Cursor generates it and the route explains what every file does. The whole process takes about 4 hours. You'll finish with a Chrome extension you built yourself and a clear understanding of how extensions work so you can build more.
Last updated: April 2026
The Problem and the Fix
Without a route
- Extension tutorials skip steps and assume you can fill in the gaps on your own
- You got stuck halfway through a build once and couldn't figure out what went wrong
- Most guides give you the code but don't explain the structure or the decisions behind it
With aidowith.me
- 14 steps with nothing skipped: every file, every decision, every potential error covered
- Cursor AI generates the code so you focus on the product, not the syntax
- Clear checkpoints at each step so you know your build is on track before moving forward
Who Builds This With AI
Founders
Move fast on pitches, pages, research. AI as your first hire.
Marketers
Content, campaigns, and briefs done in hours instead of days.
Sales & BizDev
Prep calls, draft outreach, research prospects in minutes.
How It Works
Set up the project (Steps 1-2)
Create the folder structure and manifest file. Cursor generates the boilerplate. The route explains what each entry in the manifest controls.
Build the extension (Steps 3-10)
Add the popup UI, content scripts, background logic, and storage. Each step is a single feature with clear input for Cursor and expected output.
Test and install (Steps 11-14)
Load in Chrome, test on real pages, debug with Cursor's help, and polish the final product. Walk away with a working extension.
Start building your Chrome extension
14 steps. About 4 hours. Every step explained, nothing skipped.
Start This Route →What You Walk Away With
Set up the project (Steps 1-2)
Build the extension (Steps 3-10)
Test and install (Steps 11-14)
Clear checkpoints at each step so you know your build is on track before moving forward
"Other guides left me stuck at step 5. This route got me from zero to a finished extension because nothing was skipped or assumed."- Marketing coordinator, SaaS company
Questions
About 4 hours for the full 14-step route. Each step takes 15-20 minutes. You can pause and resume anytime because the route tracks your progress. Some people finish in a single afternoon, others spread it across two or three sessions.
The route covers common errors at each step and shows you how to use Cursor to debug them. Copy the error message into Cursor's chat and it will suggest a fix. Most issues are small things like a missing comma or wrong file path that Cursor spots and fixes in seconds.
The route covers the core building blocks: popup UI, content scripts, background scripts, storage, and API connections. Most extension types use these same pieces. Whether you're building a productivity tool, content modifier, or data scraper, the 14 steps give you the foundation to build it.