I just use Firefox myself.
Had a look at the AV, the author is a bit full of himself as it isn't #1 on AV-TEST & in fact has only been tested in March & May this year. Doesn't mean its not up to the job, just means that the (somewhat extravagant) claims of 200million users & 16 years of "history" in the security business are suspect in my view. Edit - actually scratch that, looks like they were tested under a different name - AV & Security were tested seperately (not that the "security" app seems to do very much, probably why they got bundled later).
Personally I use Eset for server, desktop/laptop & mobile as I've used them for the best part of a decade.