Tools to Optimize Memory, Speed Up Firefox & make it run faster

Mozilla Firefox has always been a popular alternate browser, although its popularity has been declining a bit, since the launch of Chrome. It is the common experience of many a Firefox users, which the browser, over a period of time slows down considerably. It may take a lot of time to load during startup, and the overall speed could also be affected.

Firefox has made considerable improvements in the browsers memory consumption and utilization – but it still makes people wanting more. In fact, some even preferred to install the Memory Restart or Memory Fox add-ons from Mozilla – and even considered disabling the slowest Firefox addons.

Speed Up Firefox

Here are some free tools that will help you optimize Firefox and its memory and make it load and run faster.


Firemin is a tool that uses a safe API function called EmptyWorkingSet. It basically forces the Firefox process to use less memory and also tells Firefox to give back some of the system memory it’s hanging on to.

To use Firemin, you will need to download the Firemin.exe file, decompress it and run Firemin.exe from the extracted folder. Set the options the way you want.

To make Firefox use less memory, move the slider to the left. The more you slide to the left, the more processing power will be required. It might be a good idea to keep the values at its defaults and see how it goes, initially.

Firemin also compresses the Firefox SQLite databases. To do so, click on the Optimize Firefox option.

Firefox Booster

Firefox Booster is a small and simple application that will accelerate your Mozilla Firefox browser. You simply select one of three types of connections you use (Fast, Medium, Slow), which is symbolized by the image the car. Firefox Booster will then change the current configuration of the browser Mozilla Firefox to suit your internet connection type.


Firefox uses SQLite databases to store lots of its settings. By the time the databases grow, and Firefox starts working slowly. SpeedyFox compacts those databases without losing any data. Databases are optimized to operate faster and are decreased in size by  SpeedyFox. This tool supports Skype, Chrome, Mozilla Thunderbird profiles too!

Firefox Preloader

Firefox Preloader is a utility that is designed to load parts of Mozilla Firefox into memory before it is used, to improve its startup time.

Let us know which one of these you have found to be the most useful.

You might want to go here if your Mozilla Firefox is Freezing or Crashing on Windows computer. Go here if your Firefox keeps slowing down.

Posted by on , in Category Downloads with Tags
Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.


  1. Fayazdo

    I used to take advantage of what SpeedyFox has to offer, until since FF 12 it somehow started causing problems. The optimizing process apparently seemed to damage the FF file it was supposed to defragment.

    As for this defragmenting: Apps like CCleaner and BleachBit also defragment this same file, so the usage of a separate tool is not needed.

  2. Work

    Never heard of the Firefox restarter.

    I thought of the concept never thought someone would make an app tho.

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