editing bashrc for firefox 3

[one_2_three]

Hello,

I already download firefox 3, then, when I run that software, it stated that i have to install gtk2.12 or more but I already have gtk 2.8. Never mind, I just overcome that situation by using the following guide.
GTK+ Programming Tips and Tricks

The following are the problems that I encountered,
1. I create an Icon for this Firefox but it is still referring to the same error, 'you have to install gtk2.12'.
2. I can ONLY run the command './firefox' in the same terminal after I put these three commands.
# export PATH=/opt/bin:$PATH
# export LD_LIBRARY_PATH=/opt/lib:$LD_LIBRARY_PATH
# export PKG_CONFIG_PATH=/opt/lib/pkgconfig:/usr/lib/pkgconfig
3. If I open new terminal, it wont works also.

I try to put these commands into .bashrc but it also didn't works.
May someone help me to solve this? Where should I edit?

Thanks..

[geniuz]

Have you tried creating a symbolic link for the three features ?

You can for example do:
ln -s /opt/bin/firefox ./firefox