Install from the Chrome Web Store.
Sometimes I need to remember why I blocked someone, but I can’t. I see someone I follow quote tweet a person I blocked. I click to see what it’s about and turned out it’s actually interesting. I can’t remember why I blocked them so I unblocked, and later regret it. Or the opposite: someone said one ridiculous thing that made me block them, but usually has good takes. Knowing the reason helps me decide.
That’s why I made this.
Design
For most people, tweeting isn’t their fulltime job. They open Twitter to decompress between breaks or after a long day. Their mental engery is low. The extension needs to feel weightless, so:
The “add note” action lives right in the block/mute flow. No navigating elsewhere, and you don’t even need to remember you installed it.

The “view note” button goes where you’d need it: in your block and mute lists. Not finding an extension that did this is why I built my own.

The extension also shouldn’t stand out. I want it to feel like part of Twitter. Imagine if a macOS menu item had its own distinct aesthetic, it would feel wrong and distracting.
Developement
I made a rough mockup in Figma, write a loose PRD, and sent both to Claude. Why “rough” and “loose”? Having something concrete to react to beats imagining the product in your head. Iterate from something rough is way faster than starting from something polished.
I also asked Claude to use @AskUserQuestion tool, which forces it to surface hidden assumptions or things I might have overlooked. After that I used what Claude produced and iterated from there.
Publishing
I chose a thumbnail that clearly shows what the extension does.
For the name, I included both “X” and “Twitter” for discoverability. The screenshots (in the extension detail page) highlight what makes this different from other extensions: you can view notes directly in your block and mute lists.
Promotion
I made this for myself. Didn’t plan on getting users. Posted on reddit with a “hey I made this, check it out” energy. Got 4 upvotes from r/twitter, and 2 more from r/chrome_extensions (though that sub is mostly devs, not users).
Three weeks later: 300+ users.
So I got greedy. I noticed people on r/chrome_extensions post “sharing my wins” threads that get congratulatory replies, which keeps them visible longer. I posted one. A bit cheeky but that’s how the game is played!
One week later: 600+ users!

Takeaway
Finding genuinely novel ideas is hard. But there’s alpha in actually caring about what you do. The other extensions doing this are low-effort, have bad design, and/or miss obvious features.