Tuesday, February 15, 2011

How to optimize Firefox for Speed and Performance



How to optimize Firefox for Speed and Performance

To optimize and improve the Firefox browsing speed, start by following this article.
In addition, the tips below may even allow you to gain performance.

WARNING: The following trick disables certain security features bound to Firefox, so you use it at your own risk.
The trick is to disable the phishing protection built into Firefox.

Explanations

Firefox has a system to protect you against certain malicious sites (anti-phishing). The list of sites to avoid is provided by Google and stored in the urlclassifier3.sqlite file in your Firefox profile. (Locate the file C:\Documents and Settings\XP)

This file is about 30MB and Firefox constantly consults it to check all the addresses you visit. This has a significant impact on performance. You can disable this system.

Instructions
  • Launch Firefox
  • In the address bar, type about:config
  • Confirm if needed: 
  •  In the filter, type safe 

  • In the Settings list, double-click on the following parameters to set to false:
  • browser.safebrowsing.enabled
  • browser.safebrowsing.malware.enabled
  • Close Firefox and wait several seconds (sometimes Firefox can stay a little more in memory even if the window has disappeared).
  • In your Firefox profile, delete the file urlclassifier3.sqlite (no risk: Firefox can recreate it if needed).
  • Restart Firefox
You should see an improvement.

Reactivation

The reactivation of the anti-phishing Firefox is very simple: Replace the two previous parameters to true.

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