[Solved Problem] Firefox crash on Ubuntu after installing Windows fonts

The Problem
After installing Microsoft Core fonts on ubuntu, firefox crashed when loading pages. When trying to load firefox from the shell, the following message is received

(gecko:6422): Pango-WARNING **: failed to create cairo scaled font, expect ugly output. the offending font is ‘Arial 12′
Segmentation fault (core dumped)

Solution:
This problem is caused by permissions of the newly installed fonts, so just resetting permissions using the following command:

sudo chmod -Rv 775 /usr/share/fonts/

[How To] Install Microsoft Fonts on Ubuntu?

Installing Core Microsoft fonts:

sudo apt-get install msttcorefonts

To make them work in X-windows, you may also want to install x-ttcidfont-conf if it’s not already installed:

sudo apt-get install x-ttcidfont-conf

Another way to install fonts based on existing fonts folders inside Windows:

Gain root privileges:

sudo bash

Make a directory to store the fonts:

mkdir /usr/share/fonts/truetype/msfonts

Find the fonts on your windows partition, for me this was /media/sda1/Windows/Fonts

copy the fonts over:

cp /media/sda1/Windows/Fonts/*.ttf /usr/share/fonts/truetype/msfonts

Re-create the font cache:

fc-cache -f -v

MP3 Tag editors for Ubuntu

EasyTag

EasyTAG is a utility for viewing and editing tags for MP3, MP2, MP4/AAC, FLAC, Ogg Vorbis, MusePack, Monkey’s Audio and WavPack files. Its simple and nice GTK+ interface makes tagging easier under GNU/Linux or Windows. The program exists for the both versions of the GTK library 1.2 and 2.4. The GTK 1.2 version wouldn’t change a lot (may be some bugs fixes), as all new developments will be concentrated on the new GTK 2.4 version.

Link:
http://easytag.sourceforge.net/

[Solved Problem] obex:// … is not a valid location for bluetooth device

[Solution]

sudo apt-get install gnome-vfs-obexftp