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Fix Firefox drag bug #517

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Merged
bvaughn merged 1 commit into from
Sep 12, 2025
Merged

Fix Firefox drag bug #517

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7 changes: 6 additions & 1 deletion packages/react-resizable-panels/src/PanelResizeHandleRegistry.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,12 @@ function handlePointerMove(event: PointerEvent) {

// Edge case (see #340)
// Detect when the pointer has been released outside an iframe on a different domain
if (isPointerDown && event.buttons === 0) {
if (
isPointerDown &&
// Skip this check for "pointerleave" events, else Firefox triggers a false positive (see #514)
event.type !== "pointerleave" &&
event.buttons === 0
) {
isPointerDown = false;

updateResizeHandlerStates("up", event);
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