While you watch a YouTube video, TimestampBubbles floats the comments posted at that moment right on the player. Click a bubble and jump straight to the comment to like or reply.
No account, no tracking — it only reads the page you already have open.

As the video plays, the extension keeps every timestamped comment within the detection window of where you are (±15s by default).
Comment bubbles float over the player sequentially with a smooth slide-up — timestamp, author and a preview of what they said. Each stays for as long as you choose, then glides back down.
Clicking a bubble scrolls you to that exact comment, highlighted with a colored ring — like, reply, or keep watching.
Click the extension icon to tune bubble size, opacity and accent color, how many seconds each bubble stays, the detection window, and how many can show at once.
One-click install requires the Chrome Web Store; until then, load it unpacked:
Click any Download button above and unzip timestamp-bubbles.zip to a folder you'll keep.
chrome://extensionsToggle it in the top-right corner of that page.
Click “Load unpacked” and pick the unzipped folder. Then open any YouTube video and watch the bubbles appear. Click the extension's toolbar icon to fine-tune size, colors and timing.
Works in all Chromium browsers: Chrome, Edge, Brave, Arc, Opera. You need to be signed in to YouTube to like or reply — the extension just takes you there.