Native right-click context menu (Copy/Select All) appears unprompted at random screen positions in Browser pane

Status Open

Maintainer reply None cached

Activity 0 comments · opened Sep 10, 2026

Description

A native OS context menu (Copy / Select All) appears unpredictably, at varying, arbitrary positions on screen — not tied to any actual right-click or cursor location, and not consistently in the same place. Dismissible with a single click elsewhere on screen, but blocks interaction with the app until dismissed.

Started roughly a week ago (around 2026-09-04); did not happen before that.

Environment

Claude Desktop, macOS, Code tab

What triggers it

Correlates with the agent (Claude Code) actively interacting with the Browser pane — most noticeable while walking through work in a locally-previewed app inside the Browser pane.

Screenshot

Menu appeared in the top-right corner of the window, overlapping the Browser pane content, during one occurrence. Position varies between occurrences — this is not consistently where it appears.

Possibly related

Possibly related to the mouse-tracking issues in #66056 and #61936, though those describe the context menu failing to appear on a real right-click. This is the opposite symptom: the menu appears unprompted, with no right-click at all.

View original on GitHub ↗