Cursor disappears when clicking on contenteditable with non-editable children in Firefox
OS: Any Any · Device: Desktop or Laptop Any · Browser: Firefox Latest · Keyboard: US
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Firefox may hide or misplace the caret when moving across contenteditable=true/false boundaries—widgets and embeds inside editors are affected.
Firefox may hide or misplace the caret when moving across contenteditable=true/false boundaries—widgets and embeds inside editors are affected.
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| Case | OS | Device | Browser | Keyboard | Status |
|---|---|---|---|---|---|
| ce-0309-firefox-contenteditable-false-cursor-disappears | Any Any | Desktop or Laptop Any | Firefox Latest | US | draft |
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OS: Any Any · Device: Desktop or Laptop Any · Browser: Firefox Latest · Keyboard: US
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In Chromium, programmatic DOM updates (normalization, wrapping, React reconciliation) while the user is typing can move the caret to the end of the contenteditable or to an unexpected boundary—especially when the mutation happens between keystrokes.
Using the HTML drag-and-drop API inside or alongside contenteditable regions often diverges from behavior on plain elements: default actions, `contenteditable` hit-testing, and `beforeinput`/`drop` ordering differ by browser. Custom editors must reconcile native DnD with their own selection model.
Firefox may not show a caret in an empty block-level contenteditable container until the user types or a br placeholder exists—layout and min-height interact with focus rings.
On some engines (notably Firefox for Android / Fenix), beforeinput getTargetRanges() may describe the outer contenteditable host instead of the inner focused editor. Custom handlers that trust targetRanges alone may delete or insert in the parent surface while the user believes they are typing in a nested field.
Dragging selected content inside a contenteditable region on Firefox can duplicate nodes or leave ghost fragments—different from Chrome's behavior.
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