[Bug 1301225] [NEW] Parts of Text disappear in Firefox and Thunderbird Editors /Text Areas

Heiko Selber 1301225 at bugs.launchpad.net
Wed Apr 2 08:13:29 UTC 2014


Public bug reported:

System info:
Firefox 28
Thunderbird 24.4.0
Ubuntu 13.10 64 bit

When I edit text in Firefox or Thunderbird,  parts of this text (usually
entire rows above the cursor) seem to disappear while I type.

This happens e.g. when I edit an email message inThunderbird, or edit a
Jira comment or a Wikipedia page in Firefox.

Sometimes the 'opposite' happens, i.e. a row is copied, so it is shown
twice.

The text is not really gone; I can restore it by selecting it (e.g. with
Ctrl-a). I.e. only the text display is affected.

The behavior is not quite reproducible. It does happen frequently, but I
can't reproduce it exactly by typing the same text again.

I had never observed this behavior before the latest Firefox upgrade.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  Parts of Text disappear in Firefox and Thunderbird Editors /Text Areas

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