Finish courses faster
Use 1.5x–3x for lectures on Udemy, Coursera, and LinkedIn Learning while keeping each website on its own preset.
Firefox video speed controller
Watch at your speed.
Speed up lectures and tutorials, or slow down difficult moments. UVE controls HTML5 video from 0.1x to 16x without changing the original file.
- Free up to 3x
- Keyboard shortcuts
- Per-site memory
Playback speed2.00x
0.5x1x1.5x2x
A slower D faster S reset
Built for real learning
More control than the player gives you.
A precise controller for websites where the default speed menu is too limited.
Slow down to understand
Drop playback below 1x for language practice, demonstrations, music lessons, or difficult explanations.
Stay on the keyboard
Press A and D for fine adjustments, S to reset, and save reusable speed-and-volume templates.
How it works
Control any compatible HTML5 video in seconds.
- 01
Install UVE
Add the Firefox extension and pin it to your toolbar.
- 02
Start a video
Open YouTube, Udemy, Coursera, or another site using HTML5 video.
- 03
Choose your speed
Select a preset, use fine-step buttons, or control playback from the keyboard.