Swiftfox, versions of Firefox optimized for Linux
I very quickly tried to discover whether there were versions of my favorite browser specially dedicated to the architecture of my computer. I presented versions optimized for Intel or AMD.

Recently, I also found some versions of Firefox optimized for different OSes, including one for Linux.
Swiftfox is a version of Firefox specifically created for the Linux platform optimized for the 2 major families of processors (Intel and AMD).
Difficult to say if Swiftfox is actually faster than the standard version. I did not quite used to say.
Swiftfox is very easy to install thanks to a brand new installer provides basic multi-version distributions. The script will install Swiftfox in the directory /opt and reuse your plugins.
If a package deb is available for installation directly with the APT system Debian (and Ubuntu).
In addition to offering the download of the latest versions optimized, the site offers a forum for assistance. In case of difficulty, it is quite possible to get answers to his questions.
Only drawback, the versions are a little late (currently 3.5.5 while 3.5.6 is out).