DH-SD22204T-GN Firmware v2.810.0000000Z.3.R.210824.zip

I have one of those still working. The firmware on it is... Software Version2.400.0000.4.R.T1.484, build : 2015-06-07
Is that the same firmware?
 
Short question:
I am thinking to buy a used SD22204T—GN-W - just for my garage.
As far as I know latest FW is 2.640.
Does this FW needs the plugin for any browser ?