Razer Naga left handed (RZ01-0341) firmware

Hi there

I have searched alot but i cannot seem to find firmware for my left handed naga, not even a firmware updater.

I have an issue where my mose stops moving for just under a second at random times, and its annoying in games. its POSSIBLE that this is only the case while having synapse open so that might be the issue. but in any case can you please provide me with new firmware as I bought the mouse a few years ago and never done a firmware update.

Thank you kindly