Fix failure to download extra data files “ttf-mscorefonts-installer” ubuntu 20.4

This package “ttf-mscorefonts-installer” is used to download Microsoft’s font files (those files are made freely available by Microsoft) from the Internet and install them. Since, you must accept the EULA of Microsoft to use those font files, those fonts cannot be included in the package like other Free (Free as freedom) packages. Annoying messages of “failure to download extra data files from ttf-mscorefonts-installer in update notifier keep popping up after reboot. I have tried a lot of available solutions on Ubuntu forums and the following worked for me.

Wownload ttf-mscorefonts-installe  latest version here : https://packages.debian.org/sid/all/ttf-mscorefonts-installer/download

wget http://ftp.cn.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.8_all.deb

sudo apt purge ttf-mscorefonts-installer -y

sudo dpkg -i ttf-mscorefonts-installer_3.8_all.deb

OK Now, you won’t see the annoying notifications from update notifier.

Extracting cabinet: verdan32.exe
extracting fontinst.exe
extracting fontinst.inf
extracting Verdanab.TTF
extracting Verdanai.TTF
extracting Verdanaz.TTF
extracting Verdana.TTF

All done, no errors.
webdin32.exe: OK
Extracting cabinet: webdin32.exe
extracting fontinst.exe
extracting Webdings.TTF
extracting fontinst.inf
extracting Licen.TXT

All done, no errors.
All fonts downloaded and installed.
Processing triggers for fontconfig (2.13.1-2ubuntu3) …