Text selection breaks in Firefox when a draft ends with a newline

(#3124) Bug Needs triage messaging

Observed behaviour

selection does not select and all and cursor control becomes funky

Reproduction steps

  1. draft a message with the final character being a newline
  2. start selection at that last line

Build information

Canary Web 2026.605.11941, Windows NT 10.0 (x64), Firefox 152.0, Locale en-US

Platform

Web

Details

Expected behaviour selection should start correctly

1 comment

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Comment by Mizarc
MizarcMod 1 vote
Can reproduce CR: Firefox specific issue — Canary Web 2026.605.11941, macOS 10.15 (arm64), Firefox 152.0, Locale en-GB