**Category:** fix
**User Impact:** Long custom emoji names now stay contained inside
reaction popovers and remain fully readable.
**Problem:** An unbroken custom emoji name could force a reaction
popover beyond its intended maximum width and overflow the message view.
**Solution:** Give the reaction popover a definite 288px width and allow
the complete emoji name to wrap within it without truncation or
ellipsis. Short names retain the same content and interaction behavior.
<details>
<summary>File changes</summary>
**desktop/src/features/messages/ui/MessageReactions.tsx**
Bounds the reaction popover width and allows long names to break across
lines while preserving the full shortcode.
**desktop/tests/e2e/reaction-names.spec.ts**
Covers fixed width, full text preservation, and wrapping for the maximum
supported colon-wrapped reaction name, with deterministic seeded Picsum
visual fixtures and explicit image-load waits.
</details>
## Reproduction Steps
1. Open a message with a custom emoji reaction whose name is 64
characters.
2. Hover or focus the reaction pill to open its details popover.
3. Confirm the popover remains 288px wide and the complete name wraps
within it without ellipsis.
4. Open a short-name reaction and confirm its popover remains readable
and unchanged in behavior.
## Screenshots
| Before | After |
| --- | --- |
| 
| 
|
**Short-name regression check**
## Verification
- `pnpm test` in `desktop`: 3,858 passed
- Focused reaction-name E2E with seeded Picsum captures: 2 passed
- Desktop checks and commit hooks passed
Originating Buzz channel: `f2ec9671-d78e-4cde-894c-9f4c458c7f1f`
---------
Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Co-authored-by: npub1223z34hd7vtwc6qj4s7flsxkj644nlre2nthu7lrrmkumhu3xddsrx9r6w <52a228d6edf316ec6812ac3c9fc0d696ab59fc7954d77e7be31eedcddf91335b@buzz.block.builderlab.xyz>
