[wp-trac] [WordPress Trac] #29561: In Firefox, scroll bar jumps to beginning/end of editor upon page up/down when focused

[WordPress Trac]

#29561: In Firefox, scroll bar jumps to beginning/end of editor upon page up/down
when focused
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 Reporter:  AmbushCommander  |      Owner:
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Editor           |    Version:  4.0
 Severity:  normal           |   Keywords:
  Focuses:  ui               |
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 Steps to reproduce:

 1. Navigate to admin page and open a post in the editor which spans
 multiple pages
 2. Click in the textarea, so that the cursor appears
 3. Press "Page Down"

 Expected result: I scroll a page down in the text

 Actual result: The cursor jumps to the bottom of the text (becoming
 invisible in the process)

 Environment: Default profile of Firefox of up-to-date Ubuntu Trusty Tahr,
 Firefox 31.0 with the default Ubuntu extensions.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29561>
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