K 10
svn:author
V 6
eadler
K 8
svn:date
V 27
2018-01-01T10:07:34.235238Z
K 7
svn:log
V 489
handbook: remove instructions for NPAPI plugins

- Neither Firefox nor Chrome support NPAPI plugins anymore and as such
  the instructions to install them are not applicable.
- Tell users of opera to install the plugin directly rather than
  redirect to Firefox's instructions. I have not validated that this
  still works. Google shows mixed information for Opera's NPAPI support.
- While here remove an extraneous word 'new'

PR:		220399
Reported by:	Randy Westlund <rwestlun@gmail.com>

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