Theabout:configpage contains most (if not, all) of Firefox configuration options.
Here are 12 most important tweaks that you should know to protect your privacy while browsing on Firefox.
You will be shown a warning page.
nudge the Ill be careful, I promise!
On the main page, you will see a long list of configuration entries.
Enter the name of the key you want to update in the Filter field.
The list will narrow to only the entries that match your keyword as you key in.
To modify the value, simply double pick the entry value field and update the entry.
geo.enabled = false
Disables geolocation.
web app.safebrowsing.enabled = false
Disable Google Safe Browsing and phishing protection.
Security risk, but privacy improvement.
web app.safebrowsing.malware.enabled = false
Disable Google Safe Browsing malware checks.
Security risk, but privacy improvement.
web app.send_pings = false
The attribute would be useful for letting websites track visitors clicks.
Hope you like these tweaks.
source: www.techworm.net