Reference

Keyboard shortcuts

All shortcuts are configurable via chrome://extensions/shortcuts.

ActionShortcutWhere
Toggle filters on / offAltShiftCAny tab
Open Studio (floating PiP)AltShiftSTab with a video
Compare before / afterHold CStudio
Reset tuneRStudio

Customizing shortcuts

Chrome doesn't allow extensions to bind new shortcuts at runtime, but you can rebind anything Filmina exposes. Visit chrome://extensions/shortcuts in a new tab, find Filmina, and click the pencil next to any action.

Conflicts

If a shortcut doesn't fire, another extension or the site itself is intercepting it. Try a different combination — Filmina actions all support arbitrary Alt/Ctrl/Shift combos.