Disable download scan in Mozilla Firefox


Tired of Firefox running a scan every time you download something? Follow the instructions below to disable the download scan.

Mozilla Firefox Download Scan

Step 1

In your address bar type “about:config” and hit enter.


Step 2

Click the “I’ll be careful, I Promise” button.

Step 3

In the search bar type “scan” and press enter.


Step 4

Double click on the entry that says “browser.download.manager.scanWhenDone”. This should turn dark and give it a false value. And now Firefox will now longer scan every download.