How do I install this YouTube timestamp Chrome extension?

Hunt the Chrome Web Store for "fullscreen timestamp overlay" or similar—fork the GitHub if shared. Enable developer mode, load unpacked for testing.

What shortcuts does the Chrome extension use?

Y toggles overlay; Shift+Y changes styles. Customizable in source.

Can I build a similar Chrome extension for other sites?

Absolutely—tweak URL matches in manifest. Works on any element.

🌐 Frontend & Web

One Twitchy Mouse Habit, One Chrome Extension: Fixing YouTube's Fullscreen Blind Spot

Stuck jiggling your mouse to check YouTube progress in fullscreen? One developer turned that itch into a slick Chrome extension—persistent timestamp overlay, no interruptions. Here's the how and why.

theAIcatchup Apr 10, 2026 3 min read

Persistent timestamp overlay in top-right of fullscreen YouTube video player

⚡ Key Takeaways

Micro-frustrations like mouse twitches spawn powerful tools via Chrome extensions. 𝕏
Built in hours with JS and Chrome API—proof simple fixes beat corporate inertia. 𝕏
Signals a wave of user-driven UX patches, challenging platform monopolies. 𝕏

Published by

theAIcatchup

Ship faster. Build smarter.

#Chrome extension #Chrome extensions #JavaScript tools #YouTube UX #YouTube timestamp #developer-productivity

Worth sharing?

Get the best Developer Tools stories of the week in your inbox — no noise, no spam.

Originally reported by dev.to

⚡ Key Takeaways

The 60-Second TL;DR

theAIcatchup

Share this article

Worth sharing?

Related Stories

RankForge: The Free SEO Auditor That Keeps Your Data on Your Machine

Blazor WASM, JS Rewrite, Blazor Again: The Rollercoaster of a 3D Chrome Extension

Dinosaur Eats: Chrome Extension Turns Webpages into Prehistoric Snacks

tdev: tmux + Neovim + AI Workflow That Makes Coding Feel Like Magic

Stay in the loop