Timerhooker

Fixed, robust start/stop timer/video speed UI with 16x as default speed up.Blocks page visibility detection.

Timerhooker (Modern UI)

Instantly switch all site timers and HTML5 video speed between normal and 16x with just one floating button.

Disclaimer: This tool was built with Perplexity AI. I'm not a coder and hence you can use if you want or skip it!

Works on all sites and devices, adapts to dark/light mode.
Drag and drop: Button is movable, always visible, and never lost.
Tap or click the button to toggle between 1x (play icon) and 16x (stop/square icon) speed for all timers and videos.
Auto half-hide: The button slides 50% off the nearest edge after 3s of UI inactivity, but never disappears.
Safe and private: No remote requests or data collection.
Bonus: Blocks most attempts by sites to detect page focus/visibility for smoother operation.

How to use:

Install using a userscript manager (see below).
Once the glassy button appears, click or tap it to toggle fast/normal speed.
Drag the button wherever you want; it will stay there and lock to your screen.
After 3 seconds idle, button slides halfway off the closest edge for minimal obstruction (just tap to restore).

Requirements & Tools:

Credits:

Based on work by Cangshi • English UI & updates: Tiger27 • Engineering: Perplexity AI.

Enjoy a faster web, always in control with a single click!