Hey!
I noticed problem with datepicker in Highcharts on Firefox browser. When I try to go a few years ahead or back the datepicker somewhat "submit" itself and change the range of chart to one year ahead or back. It's kinda annoying when I want to e.g. go 10 years ahead and have to go through datepicker 10 times.
You can see the problem on Firefox browser on this demo: https://www.highcharts.com/demo/stock/data-grouping
I recorded demo video of a problem: https://streamable.com/0x9cpr
Thank you for any help!