Why this feature matters
Many learners want Language Reactor-style convenience without being trapped in a single extension workflow or a cluttered overlay. Butterfluent's extension keeps subtitles readable, moves settings into a dedicated player modal, and turns the active subtitle line into an interactive study surface.
What Butterfluent includes
- Clean stacked subtitle placement that follows the native caption line with adjustable size, spacing, background opacity, and position
- Interactive mini dictionary, phrase selection, saved words, and a side rail for more examples from the current video
- Replay, previous and next subtitle controls, loop mode, auto-pause, keyboard shortcuts, and a modern in-player settings modal
- Support for YouTube plus supported streaming platforms including Netflix, Disney+, Prime Video, Hulu, Max, and Crunchyroll