Firefox extension lead loading issues

[mflorell]

Just wanted to pass this on from one of my clients:

Not a issue but a heads up....Firefox has this web accelorator extension
called FasterFox (https://addons.mozilla.org/en-US/firefox/addon/1269).
Having this installed will completely screw up the lead import script. It
ends up importing the list about 8-9 times during a single import.