Firefox Loads Some Sites Very Slow

It happens on Fedora 12 and Fedora 13 with both Firefox and Seamonkey. It turns out it is not a Firefox problem but a problem related to tcp_window_scaling. See the page http://linux.derkeiler.com/Mailing-Lists/Fedora/2010-02/msg00660.html.

To disable it

echo 0 > /proc/sys/net/ipv4/tcp_window_scaling


Permanently

# echo '"# Disable TCP window scaling" > sysctl.conf'
# echo '"net.ipv4.tcp_window_scaling=0" >> sysctl.conf'


Also see http://www.ecr6.ohio-state.edu/window-scaling.html.

Firefox Blurry Image with Zoom

To fix the problem, View->Zoom->Zoom Text only.

Ctrl-0 to reset zoom.

web fonts

These packages include popular fonts as Arial, Times New Roman, Tahoma, Verdana, as well as new Windows Vista and MS Office 2007 fonts. Learn more.

bash$ sudo rpm -Uvh \
http://avi.alkalay.net/software/webcore-fonts/webcore-fonts-3.0-1.noarch.rpm \

http://avi.alkalay.net/software/webcore-fonts/webcore-fonts-vista-3.0-1.noarch.rpm