Use FireTune For Better Firefox Performance

FireTune is a portable, Windows-only application designed to speed up Firefox. According to your specific computer speed and internet connection speed, FireTune will optimize several internal settings of Firefox for better performance. The whole optimization process is fully automated and does not require any 'geek' knowledge - just make your selection from the available speed configurations and FireTune will do the work. It was developed for an easy and fast optimization of your browsing experience with Firefox and is based on a collection of popular and well working optimization settings used and tested by the experts.

What FireTune does is basically tweaking your ‘about:config’ settings so you don't have to manually alter all those parameters.

Note: Make sure you have made the backup of Firefox configuration before tweaking it with this tool. Backup and Restoration of original configuration can be made from within this tool.

FireTune features:

• No installation or uninstallation required - download, unzip, execute and you are done
• Speed improvements according to your computer speed
• Improves browsing speed according to your internet connection speed
• Speed improvements for slow, medium and fast computers / connection speeds
• Enables some hidden tweaks of Firefox for even more browsing speed
• Includes a configuration backup and restore function
• Optimizes SSL connection speed
• Optimizes Firefox memory usage
• Works with the installable and the portable version of Firefox
• Multi language user interface: includes language files for more than 30 languages
• Includes a help file with details on what FireTune exactly does
• Online update check - notifies you when a new version is available
• Completely FREE - FireTune is freeware and does not cost a cent!

Download FireTune

Looking for other ways to speed up Firefox? You may want to take a look at these too:

Windows only:
Optimized Firefox 3.5 Windows Builds
Another Solution For Fixing Slow Firefox 3.5 Startup

Linux only:
What Is And How To Install Swiftfox Web Browser in Ubuntu and Other Linux Distributions (Optimized Firefox build for Linux)
Speed up Firefox by mounting the profile in tmpfs (RAM)
Ubuntu: Speed Up Firefox By ~45%
Speed Up Flash and Firefox in Ubuntu Jaunty
Quick Tip: Improve Flash Performance In Full Screen Mode
How To Fix Full-Screen Flash Videos in Linux & Firefox (or Swiftfox)

Any OS:
Fasterfox Lite 3.8.1 - Turbo Charge Your Firefox 3.5
Increase Firefox 3.* Performance by Optimizing the SQLite Databases