How many Browser windows/instances possible ???

[BuckSkin]

The F1 Help must be a bit dated, as it states that only a single Browser can be open.

https://www.xnview.com/wiki/index.php/X ... User_Guide

Just to see what happened, with one Browser open, I wheel-clicked the task-bar icon four times and immediately had five usable Browser windows.

How many are possible?

Thanks for reading and all help is appreciated.

[xnview]

one signle browser in the instance.
The number of started instances is limited by memory.