Znavko,

znavko@disroot.org 写道：
> I have copied fonts to mom account and its content is this:
> $ ls /home/mom/.fonts/

The XDG ‘.local/fonts’ directory is preferred by upstream and 
probably more future-proof, although .fonts might still work.

Have you run ‘fc-cache -rv’ and restarted IceCat after 
installing fonts?

If /var/cache/fontconfig exists, delete it first[0].

> And also how to make Icecat menus are Russian?

You can download ‘language packs’ at

  https://ftp.gnu.org/gnu/gnuzilla/60.7.0/langpacks/

then set ‘intl.locale.requested’ to ‘ru_RU’ in about:config 
(you may need to create this key).

Kind regards,

T G-R

[0]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36862