If this is due to a single employee making a mistake then I would be inclined to question Mozilla’s policies for removal of popular extensions more than fire the employee.

How?

Yes, maintain whatever your normal security posture is while traveling.

Heh, good one

If I could upvote you twice, I would.

There are hundreds of us! HUNDREDS!

jk. As a current and longtime FF user I feel your pain.

Are you looking for something with a nice UI or just hardware you can install your OS on and roll everything yourself? What’s your budget?

Ubiquiti makes a pretty user-friendly rack-mounted router: https://store.ui.com/us/en/products/udm-pro

You can also check out pfSense, which is an OS that does routing and more. You can install it on your own hardware or buy a machine through them: https://www.pfsense.org/products/

If you’re just looking for a compact server that you can install your own OS on, then SuperMicro has a sale going on right now: https://store.supermicro.com/us_en/catalogsearch/result/?q=SuperServer 1u&categories=Deals

Just know that whatever you pick to replace the router-portion of your current Netgear device, you’ll also have to invest in a separate WiFi access point to provide your wireless network.