If you are having a problem with sites not rendering correctly while using Ubuntu, the problem may be that the declared font-family may not be loading correctly. This has to do with proprietary fonts like Ariel and Times New Roman not being directly available on Linux based systems. If this is the case, you may need the Microsoft TTF core installer.
The installer will install Microsoft font packs on your system, and let you use them as you would any other font. Why they are not distributed with releases eludes me as I’m sure it does most others; it’s probably some kind of licensing thing with Microsoft. But, Microsoft releasing their core fonts for free, and having the ability to install them is nice.
Now the nitty gritty.
To install the font pack, you can either use a package manager like Synaptic or the Ubuntu Software Center, which is recommended, or just use the terminal. The command to install the package is
sudo apt-get install ttf-mscorefonts-installer
You will see the packages downloading on the system and then a EULA (End User License Agreement) will appear. Just hit the “Enter” key to accept and move on. The packages will finish installing and be available wherever the fonts are requested, like browsers and text editors.
If you are interested in installing other fonts, I would recommend that you check out the Fonts section in the Ubuntu Software Center. They can be selected from the navigation panel on the left. A list of available fonts will appear, and to check out one that you may be interested in, just hit more info, and an image of the TTF document will appear giving you an idea of what the font looks like.
As with most things on Ubuntu, it really is that easy.