A notes on Ubuntu's fonts

This note is for ones like me who moved from Redhat family to the Ubuntu community. It can be easily noted that the fonts used in Firefox and Thunderbird are very different.

For Thunderbird, it can be changed in the Preferences/Fonts to match the default settings used in Fedora, for instance.

For Firefox, the fix is not that simple. Thanks to helps from a friend, the gist of the problem lies in the fact that many websites use the Microsoft fonts. It therefore requires to download and install such package in Ubuntu. As the matter of fact, these fonts are in the ubuntu-restricted-extras package. In particular:

sudo apt-get install ubuntu-restricted-extras

The end.