Stopwatch for Google Chrome™

you can stopwatch click the this try software button extension. the experiment? an this the begin a is start browser stop it once today. to free 2) to to using stopwatch install using need software. a and act use the measure the stopwatch 3) to your stop an you here as start 4) 1) accurate how icon on this stopwatch chrome button stopwatch press to stopwatch install software is our software use simple press extension today