I gave an AI my browser cookies, real logins, and full control of Chrome.
Not in a sandbox. Not in a headless browser. In my actual browser. With my actual sessions.
Here's what happened.
I built Intron, an open-source Chrome extension that turns any LLM into a full browser use agent. It sits in your side panel. It clicks, types, navigates, fills forms, extracts data. 18 real browser tools. 30+
models via OpenRouter.
No server. No cloud. Just a Chrome extension + your API key.
The wildest part? My recent tweets were posted by Intron. You've been reading AI-operated tweets from my account and had no idea.
I didn't build this to sell anything. I built it to learn how browser APIs actually work and to stress-test how far LLMs can go as real users.
Turns out... pretty far.
It's fully open source. Go break it.
#NYTechWeek and we're already in the thick of it 🗽
My co-founder @siddsax and I are in NYC - met some insane builders on day one. The energy here is unreal.
Around till Jun 7 - catch us on the boat, at Oasis, or in the DMs 🤝
#NYTechWeek is already hitting different 🗽
My co-founder @endu_29 and I landed in NYC and already met some incredible builders. This is just getting started.
Catch me on the boat, at Oasis, or just slide in the DMs 🤝
VCs & analysts of twitter, how well do platforms like GLG or alphasights work for you? I've been on the other side as an expert & it requires such a high trust to work. I've seen experts just trying to maximize their hourly rate and calls. 1/2
Excited to finally ship this!
The new YouTube Summaries feature on @MerlinAIByFoyer is LIVE.
I worked on the extension sidebar experience for this one. We pull in the transcript, process it carefully, store context intelligently, and try to make summarizing long videos feel seamless.
Would love honest feedback from power YouTube users.
Especially around:
• summary quality
• speed
• UX
• what you'd want next
Trying to make this genuinely useful, one iteration at a time 🙏
Install :
https://t.co/TvBySbXPVW
persistent context that doesn't need you to re-explain everything every single time. we @ thine is solving the actually annoying part. the video makes it obvious.
Your brain isn't built to be the entire team. @ThineAI is.
It holds the context of your business. Orders, negotiations, emails, opportunities.
No long prompts. No complicated setup.
It just pays attention. Follow @thineai & Join the waitlist!
BREAKING: Jensen Huang boarded Air Force One at the last moment.
Elon still under investigation. Trump taking charge.
The China Visit, only on TechBrunch.