Just 5 Minutes by rhn

You open Reddit, X, TikTok, Instagram, YouTube or Facebook for “just five minutes”… and somehow two hours disappear. This extension fixes that.It gives you a shared timer across all your tabs on those sites. You get your chosen amount of time (default is 5 minutes). When it runs out, the extension completely blocks the scroll wheel, trackpad gestures, and keyboard scrolling keys (Space, Page Up/Down, arrows, Home, End). You can still click links or close the tab, but the endless mindless scroll is over.Features:Customizable session length from 1 to 60 minutes
Works across all open tabs of the sites you pick
Choose exactly which sites to track (Facebook, Instagram, Reddit, TikTok, X, YouTube — easy to add more)
Whitelist any domains you want to keep normal scrolling on
Live timer visible in the popup and settings page
Everything stays 100% local in your browser

If you’re tired of losing time to feeds, give it a try. Set the timer, get your five minutes, then get back to your day.

Privacy: No data is collected or sent anywhere. Your settings and session info never leave Firefox.