[Bug 2025651] Re: default Japanese font in snap apps is ugly

[Gunnar Hjalmarsson]

~/snap/firefox/current/.config/fontconfig/fonts.conf was updated
"automatically" on my mantic installation. Not sure which combo of
circumstances made it happen, but I have core22 from the
latest/candidate channel. Then I refreshed firefox (switched form
latest/stable to latest/stable/ubuntu-23.10) so the revision was changed
(from 2880 to 2851), and then when launching FF the fonts.conf file in
question was updated as desired.

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https://bugs.launchpad.net/bugs/2025651

Title:
  default Japanese font in snap apps is ugly

Status in Snappy:
  Fix Committed
Status in language-selector package in Ubuntu:
  Invalid

Bug description:
  Japanese fonts in snap packages such as Firefox use glyphs from
  Chinese fonts. non-snap packages are fine.

  This is derived from the following ticket:
  https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/2017076

  How to reproduce:

  1. Install lunar or mantic with Japanese language pack
  2. Enable Japanese locale
  3. Start Firefox
  4. Type or Copy "刃" to address field and type enter
  5. Check glyph of "刃"

  Expected result:
  The following Japanese glyph is displayed:
  https://glyphwiki.org/wiki/u5203

  Actual result:
  The following Chinese? glyph is displayed:
  https://glyphwiki.org/wiki/zihai-018904

  Others:

  * Ubuntu 22.04 LTS not affected, works fine.
  * Fixed if you remove fonts-droid-fallback package.

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