How to Disable Malware Protection in Firefox?

In Firefox, open a new tab, then type about:config in the address bar and press Enter. Click the button promising to be careful.
In the search box above the list, type or paste browser.safebrowsing.malware.enabled and press Enter.
Double-click the browser.safebrowsing.malware.enabled preference. It should switch from true to false and regular type to bold.

if you are running firefox, disable the protection to download the file, you can enable it later or add an exclusion.

to disable:

Thanks dopefish but why is it detecting a malware? is it because i'm already infected that its preventing to do so or is it that its really malware!