Firefox ? Chrome ? Brave ?
Kinda worried because all of them try to collect information about your activities online. I've purchased BitDefender AntiVirus, and taken some other precautions but... can never be too careful as they say.
Most browsers are the same, not too much difference when you use metamask extension but if you want to find a browser that respects your privacy then firefox and brave is a better choice than chrome.
Whether your assets are safe or not is up to you, please use separate computers and phones for crypto activities, do not visit strange links, do not install crack software downloaded from the internet. To be more secure for your assets, I think you should buy yourself a hardware wallet.