Here is the latest version of the old Firefox add-on 'Fasterfox'. The author of the original add-on stopped updating at the end of 2.0.0, so here is a working version for the latest build of Firefox.
Simply run it with Firefox once downloaded and the install pop-up will appear.
Check the FAQ page on the old site for any information, it still works the same as the old add-on.
Fasterfox - Performance and network tweaks for Firefox.
Prefetch Links
Dynamic speed increases can be obtained with Fasterfox's unique prefetching mechanism, which recycles idle bandwidth by silently loading and caching all of the links on the page you are browsing.
Tweak Network
Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay.
Page Load Timer
A millisecond accurate page load timer tests the effectiveness of your settings.
Block Popups
A popup blocker for popups initiated by Flash plug-ins is also included.

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