See below for Safari and Firefox instructions:
Chrome
Click the 3 dots at the top right of Chrome, then select “Settings” from the drop-down menu.
On the left side, click “On Startup”.
Click the circle to the left of “Open a specific page or set of pages”. Then click “Add a new page” and enter the following: https://hmpinsite.com/
HMP Insite will appear as the default homepage when Chrome is opened. You may be prompted to log into your Microsoft account on your first visit.
Safari
With Safari open, click "Safari" at the top left of the screen, then click "Settings".
Change the setting for "New windows open with" to "Homepage", then enter https://hmpinsite.com/ as the homepage link.
Firefox
Click the 3 lines at the top right, then click "Settings".
On the left, click "Home".
To the right of "Homepage and new windows", change that settings to "Custom URLs"
Then enter https://hmpinsite.com/ as the homepage URL.